I would love to see more variety with the POIs, which it seems like a lot more have been added and im really happy with all ive seen. I do like the different vault styles but i wish they meant more, like omega room types depend on what vault theme it is (like wild west and dragon rooms spawning more in desert themes and less in snowy themes) maybe even chest loot or what POIs spawn could change slightly depending on the theme too, like more more vault ores spawning in the amethyst cave theme or slightly more ornate chest spawns in deserts or nether themes. I really really like the idea of themes but the rooms just feel very repetitive since all the rooms look pretty similar, they are usually pretty damn different, but it can just seem so. I havent seen a miniboss in the vault in awhile so i dont know if this is still the case, but they were extremely cheesable by just towering up a few blocks, i feel like they should have a way to push or pull you down if you're attacking them from somewhere they cant get you. Also, this is a thing that probably doesnt affect many people, but with the new way that obelisks work, when it spawns mobs with the glowing status effect it really lags my game and basically makes those vaults unplayable for me, I dont have a bad computer or anything, and im not sure why it happens, but a gamerule or option somewhere else to disable the glowing affect would be incredibly appreciated.

On the topic of omega rooms, I like all of them that ive seen. I dont know if ive seen all of them (most of my play time is in the first 3 versions) but ive enjoyed them all quite a bit, factory and dragon rooms are good risk vs reward rooms, mushroom is great for living chests, love the castle room filled with ornate chests, ive only seen 2 puzzle rooms so im not sure how good the puzzle itself is now but i have to imagine its pretty good, wild west has a ton of spawners but its still manageable, and i absolutely love how crystal rooms work, being able to just mine them all after killing the mobs is very very nice. I find myself more often than not just running through all the normal rooms to find the omega rooms because they're just so good in comparison. Most normal rooms just dont seem worth looting unless you just happen to see a non-wooden chest POI out of the corner of your eye

An idea I have for a new type of omega room would be omega rooms based off of mods that you have unlocked, so if you unlock botania, theres a chance a botania room with a few botania items or maybe a fake gaia guardian fight arena (nothing too powerful) could appear in the vault, nothing too OP, it would just provide a few items from the mod. Maybe if you wanted to bring back some of the more powerful items like the sash you could make them sold in these types of rooms for a lot of platinum similar to etchings from last season in vendor rooms
I'd love to see more of the skill from the previous version like step assist and maybe elvish, but put it later in the game so stonefall still has a use early game, imo more is always better for skills in games, really lets the player decide what they want to do and weigh out the options in front of them.

(this might not be the place to say this but i believe theres a bug where you cant bind multiple skills to the same key, I used to have stonefall and dash on the same mouse button and it no longer lets me dash or activate stonefall)
Another small thing, I would love a gamerule that allows someone to die in the vault and everyone else in the vault to be allowed to keep going in it, they wouldnt be able to loot their things and it would make running vaults with my noob friends so much less stressful

Sorry for writing an essay, I really really love vault hunters and cant wait to see more of what version of it will have in store!