That depends on what you feel in 4E needs house ruling.Ug, what a shame, I'd really hope they'd have all that sorted out.
I'm sure I can think of ways to house rule down most of the offenders though. The real question is weither it would be easier to HR 4e or 5e.
For me, fixing a few spells is much easier than all the changes I'd have to make to 4E to bring it to where I want it. Hell, if I don't feel like dealing with a particular spell, I can just ban it.