Did people not read my post about the spotty REUC information?
The compilation stuff has never been stated by Capcom themselves -- that came from a Chinese magazine that got the title of the game only partially correct. Capcom has said NOTHING regarding the game being a compilation, aside from obviously recycled footage from RE0 and a minor retooling of a REmake interactive demo. Even RE4's intro reused old footage from the REmake and RE3.
We really don't know for sure that REUC is going to be.
That said, Capcom does spell the Biohazard name out with all lower-case letters for this game, just like the Japanese versions of RE0-REmake-RE4. For RE5, it's all upper-case.