There are some issues in DDO that would be nice to see changed, but that would be really hard to fix (I'm looking at you handwraps bugs of the past). Some of those have been fixed/changed and some haven't and I'm glad that the work has been done on those.
Other changes seem like they'd be easy to make. Since we don't know the code involved, we can't know for sure if they would be easy to fix, but we can at least make suggestions. What "probably easy" changes would you like to see in DDO?
My first wish would be for Necro I, II, and III to flag like more modern chains do. Once you run the flagging quests, the capstone quest stays flagged (like Phiarlan Carnival, Sentinels of Stormreach, Druid's Deep, etc). Might be hard, but it at least looks like something that would be easy to change.