If Larian implements a DM mode and world editor like they did with DOS2, this game could be an incredible way to create new adventure modules using the D&D ruleset.
yes please.
Alignment
I know that some people hate alignment, and some people say it has no purpose in 5E. I disagree. Alignment provides a guideline for character development and a moral base to consider when taking actions in the game. Without alignment, many players would not consider their actions and simply do what they feel is the best option at the time. Additionally, there are alignment bound spells, abilities and races in the game. Alignment has wide-ranging effects that may not be immediately apparent in the moment-to-moment gameplay, but it can have major character and story ramifications when used properly.
I also know that they discussed this with WotC and Wizards said that they don't need to emphasize alignment. I think that this is the wrong choice, but if it's not going to be implemented in the main game, I would still like for the option to be there if a module editor is made available. It's a fundamental part of the D&D experience.
Optional Alignment system would be welcome along with additional backgrounds / city tags, everyone right now is from Baldur's gate
for the most part (not going to go into detail about who isn't).