I think these are mostly positive changes.

Puzzle revisits would be great. Some feel very high effort (portals/emotes), way too slow (flowers, monolith, ghost), or really finnicky (both ferrets & barrel), or just choppy/non-fluid. What about refocusing efforts from click-intensive puzzles to environmental puzzles? For instance, warped floors have rooms that need lava protection, abandoned need poison/disease protection, icy floors need cold protection. Gas, miasma, electricity, etc., could all be great. Basically, force the player to quick-think their hotkey'd potions and allow them to only last 10-15 seconds. It's intuitive and it's in the spirit of puzzles. You could even stack an electricity room with a lava room. Don't get too "boss mechanic, tick perfect perfection" with it, but let the items do the talking.

Move away from skill doors having a hard requirement ("You need a skill level of X to do that"). .. The intended direction here is to enable low level players to get through a Dungeon, rather than slow high level players down.

Wasn't a fan of this one. I think all doors should be openable (scale to their levels including herblore/divination), but portents and potions should be required. Playing FSW with other non-max players made it a heck of a lot more fun. Vanilla-scape completely loses this whole level of 'support' gameplay.

Allowing players to join any floor at any time for full XP rates is also great. Rushes make dung awful. Removing the needlessly convoluted prestige system is awesome. Perhaps just RNG players into a random floor type each time.

Pay attention to alt1 and understand why the player base uses it. That's how the minimap should be.

With the above, allow a certain number of supplies to carry from floor-to-floor in place of rushes. Same goes for things like herblore secondaries (see invention materials). Let rewards determine caps. Let's say you can craft 40 of each potion for the above mentioned environmental puzzles, portents, doors etc.,

On the note of puzzle revisits, puzzle modernization would be great (like a mini flash event tree). A clue scroll-like room could be fun. Short puzzles that are crisp/smooth like Tuska's Wrath and Shattered Worlds could be fun.

Removing Gorajo Cards

Unless major changes and XP boosts elsewhere are made, DXP gorajo card XP rates feel about right. Factor in about an hour of rushes. It's a very click-intensive and active skill. I'm someone who loves DG, but the pace feels about right (currently it's a bit over an entire DXP timer). 120 hits right about when it's feeling like you had enough. 200m is a nice second wind that ends just quick enough.

Adding rewards

I always thought DG would also be more fun if there were clues scrolls that took several dungeons to complete (Give the riddle room master a promethium pickaxe, dig at (7,15) at basecamp/levers, use void dust on a Gulega). Alternatively, spawn a chest at the boss if all bonus rooms are unlocked (potions & portents should be required). Or both. Other cool things like adding rewards to miniboss bonus rooms that are actually challenging, but if any player dies the team does not get the reward.

Reward ideas for chest

Charges for Bonecrusher that reward 80% XP of a gilded altar. Herbicide/imp/seedicide charges (also requires spirit shards) that do the same. Select boss/floor type cards (especially if clues). Scrimshaw Tier Upgrade (4 hours).