Two core problems of DBD (IMO)
Hooks and gens
Intro
The game is great and I love it. I have been playing since around month 6 of the game off and on. I have almost 3k+ hours in the game, mainly on survivor. I would play killer more if it wasn't for the fact that the objectives of the game feel completely out of your control. Killer is a lot of fun but in order to stop the gens from being done you have to buy dlc and lvl killers up to unlock certain perks that allow you to do so. Why is this? Why does the killer have no control over the objectives? Well the killer actually has a few things he can do without it. All of these though usually result in him doing something to the survivor that's frustrating for them and can be toxic. This in turn makes the survivor mad at the killer and become a toxic player himself creating the never-ending cycle of toxic behavior towards each other. I really don't think the game should be made in way that can completely frustrate the players because they simply don't have control of the situation.
My solution
Gens and hooks should be reworked. Killers have been saying it since day 1 that gens are a problem and while there has been many changes that have made it better for killers, it hasn't stopped being a problem to this day. Like I said before the gens just feel completely out of your control which is very frustrating as killer. Hooks however haven't really been talked about as much, or it doesn't seem like it. I don't like waiting 5 to 10 min for a game to just be found at the start by a stealth killer and them getting a free hit. Then the chase ensues and I make 1 mistake and he catches me. At this point my game could end before it started and I would have to look for another game wasting 10-15 min of my time to be FRUSTRATED. This makes me not want to play the game.
Hooks
The killer shouldn't have to hook survivors. Plain and simple. Have the entity from the endgame collapse come up and grab the survivor and hook them randomly on the map away from the killer. Kind of like how pyramid head works. You could add something to where the killer has to "channel" kind of like how pyramid head does, if you think it would be to strong. This will make it harder for a killer to camp or patrol a survivor on the hook because the killer can't control where the survivor is put. The killers focus should be shifted away from the hooks and onto the objectives.
Objectives (aka the meat of the post)
GENERATOR REPAIR IS MINDLESS AND BORING. We all know I'm right. It's not fun or entertaining. That's ok though, the game doesn't always have to be action packed and exciting but the amount of time spent on gens is just wasted potential for the game ,in my opinion. I think other objectives should be added to the game and there should be less generators. One idea I thought of was to make survivors have to search around the map for a part for the generators and then take it to a specific one, should be coded far away, or something like this. The killer then should get notification that the survivors found a part and then be notified periodically on their movement while carrying the objective. This will make it so the killer will be able to try and stop them from reaching the generators with it while also creating a good reason to chase them other than their end goal being killing them. You could also add a mechanic that would allow for survivors to pass of the objective to one another in close proximity (4 man swf might ruin this) and activate a skill check for the survivor receiving the part. If failed he drops the part. Maybe the part disappears and need to be found again or left on the floor. If it's left on the floor then there needs to be more parts than needed so the killer can't just camp the part. I really think this would make the chases a lot more fun and dynamic. I understand that you guys (BHVR) like stealth gameplay in the game and I'm not to sure what to do about that in this regard. I do know the chase is fun for both killer and survivor for the most part. Getting outplayed by someone better isn't always fun but that's any multiplayer game.
Conclusion
This is just a few ideas I've been able to come up on my own in only minutes. I understand coming up with pretty much a new core for the game won't be easy and executing it won't be easy but you (BHVR) have done very big changes to the game. You have shown that you are capable of completely changing the game. If you do end up being inspired by any of these ideas and you do want to make chases more of a core part of the game then you should remove some dead zones and also extend the length of the game through objectives. Oh and perks... yea... well yea... a lot of those would have to change as well. Gen defense perks in particular. This would also get rid of DS the most complained about perk for killers even though it shouldn't be because what I'm arguing is what they should be complaining about. This is a lot to ask for I know but I think this would greatly increase the life and longevity of the game. The cosmetics and new killers are nice and freshen things up but if you want players to really want to spend a lot of time ,and $money$, playing your game , then you NEED to remove frustrating gameplay from both sides as much as possible. This will in turn keep the players playing the game while new players join and love the game. It's a very unique game that really can't replicated easily. Others have tried and failed. I also didn't mention the tomes with the new content you release because I don't think working on this should affect that like it should DLC/FLC and cosmetics. Like I said it's great and all for those but the core of the game has problems that haven't been properly addressed since launch and should take precedence over those. If you agree with me make sure your voice is heard. If not talk about it. I'm not a big forum person so I might not engage in the conversation.
To the devs
Yes this was sparked by the new ui and movement patch. I won't talk about that though because it's on the radar. I will say this though. You have a certain vision for the game and don't want to deviate on that based on what the community may say. Comprises are good though and sometimes they should be made.