So that was the good news.
The bad news is that Blizzard is unsure about how much support Ultimate Evil Edition will get in he future. Right now they are deciding if they will just patch out critical bugs or if it will actually get the new content and additions the pc version will get down the line.
Apparently they will announce patching plans before release.
I really hope they decide to support Ultimate Evil Edition properly!
Source Blizzard forums
We're still working out all the details regarding if and how Ultimate Evil Edition will be supported post-launch (e.g. will we patch the game after it ships? if yes, should we only patch to fix bugs and address critical game issues, or should we patch in new content as well? at what frequency should we patch?), so we don’t have an answer for you right now. That said, I can confirm that UEE will ship on all platforms with all updates included up to patch 2.0.5, and that there will likely be a “Day 1” patch to add in patch 2.0.6 content, too.
As we move closer to ship and finalize our post-launch patching plans, we’ll be sure to keep you updated. Great question, though!