Catch up? Well, we'll get to where DMM Kamihime is at (hopefully, assuming Nutaku doesn't just decide to AXE Kamihime) but at that point, DMM Kamihime will still be months behind the DMM version. And by months, I mean like a year or so.

So while we will eventually get the DMM UI, we're not really ever going to "catch up." Unless Nutaku will start skipping events like mad, that is.