No I don't think I'll ever delete my profile or leave DA forever...
Of course I'm not as active as before, and many of the people I used to watch don't use Deviantart anymore. But this website has been so helpful and important to me (+ I've met so many great people) that I could never say I 'leave' it. Not going on Deviantart everyday doesn't mean I'm not a member anymore
But I can say -at least- that I really dislike Eclipse and that the old version was way more easy to use, I miss it a lot now and I spend so much time to see all the deviations on my watchlist