$5000 by the end of the year is definitely possible.
Though it will require the fork to go well, if the community gets divided any further on this issue then not only will the price plummet, support for bitcoin will also drop quite drastically. Especially if there was to be a chain split, that would probably drive the price down quite a bit.
If bitcoin stays whole then $5000 is pretty much well within reach, beacuse right now people are worried about the fork and yet price is still doing reasonable well. Just imagine the bull market we're going to have if the fork goes well, but that's a big IF.