At this point it's a why bother if you;re going wait that long to fix something customers screamed long and loud about you'll just tick off everyone else that finally got used to living without the old start button because now something else will have changed yet again in 8.2 which is just disruptive at that late date.
I say forget it, there's aftermarket start buttons, just leave it alone and let people use the 3rd party options.
FWIW, this is one of the biggest marketing blunders I've ever seen MS do since Win ME.
I'm using Win 8.1 just fine and don't get all the kvetching as it's real old news and massive sour grapes at this point. However, I've weaned myself off almost all the other MS tools at this point and use all freeware and open source and am quite content without that Redmond monkey on my back sticking it's hand in my wallet on a regular basis.
Personally, after using it quite a bit lately, I'm considering a switch to Ubuntu and MS can go take a leap into the history books.