I'd like to see the Challenge Tower come back, but with different game modes added in it like Chess Kombat. I want some damn Chess Kombat.

Challenge Tower, Test Your Might/Strike/Sight/Luck, and Tag Mode (not sure if that really counts) are all musts.

I'm down for a more in-depth, fleshed-out Chess Kombat; I spent countless hours playing that in Deception.

And God knows the story will likely gloss over everyone who isn't a major hero or villain, so I like the idea someone here once mentioned of a Konquest mode, wherein each character (a la Deadly Alliance) gets some story development, as well as teaching players the fundamentals of their gameplay (perhaps turning into a combo challenge.) However, that may be too lofty of a notion.

As long as The Krypt makes a return, I'm happy.

Definitely chess kombat or a variation of it.

8-Kombat (MKT).

The Krypt similar from MKDA plz.

Tournament Mode would be nice.

I'd like a Krypt as big as the Deadly Alliance one but designed similar to the MK9 one. I loved the different sections and bodies, the torture devices ect. It was fantastic, Just filled with hardly any goodies.

Don't forget the Krypt Monster. She must return, too.

Best part about MKDA krypt was how many unlockable characters there were. I like earning unlockable characters rather than have vast majority of characters available from the get go like in MK9.

For instance I really wish completing the challenge tower would have given a secret unlock character. An alt costume was not worth the effort

I probably played Puzzle Kombat more than any of the other modes in MKD but don't think it needs to come back really. Chess would be good.
Tournament should definitely return and they need to add Single Fight from Injustice.
Test your Luck/Strike/Might/Sight were a lot of fun and I'd love to see them again. 2 on 2, 3 on 3 or a never ending endurance mode could be sweet.
Challenge tower was really tough but a lot of fun and should return with even more challenges.
The Krypt should be bigger and have more variations of unlockables.
I excited to see what they come up with.

Challenge Tower for sure but with a WAY better reward this time.

I liked what NRS did with Injustice and gave us different ways to play the ladder. For example, we could play the ladder with our super meters permanently filled, we could fight villains only, heroes only, etc. So I'd like to see a greater variety of ways to play arcade ladder.

The Krypt, but with better content. We need "Making of" videos, "Behind the Scenes" videos, hidden characters etc. Not random paintings or bits of music.

I would like for a UMK3 mode where every character fought UMK3 style.

Endurance mode..which was gonna be in MK9 and was technically apart of story.
Kombo Challenges
Test Your... in the ladder rather than rotting in a desperate menu