I'm still on the "old" profile, as are many (if not most) of my friends. Yet to see a hard push to switch over, though I'm sure it'll come any day now.

They keep laying little tripwires all over the place, trying to trick you into accepting Timeline, but if you are careful you can avoid them.

On a side note, I didn't do anything to keep the old display style, I just didn't manually switch myself to the new timeline, and they never auto adopted me over.