In my 2017 predictions I said that Falcon Heavy would at least make it to the pad, but might not fly. I think it's close to 50/50 on them making it to flight this year, but since this poll didn't allow as much weasling, I'm going to be a contrarian and say Nay. While there may be no obvious reason why they couldn't make FH fly this year, there are still things that could go wrong, and we don't know what their priority is for FH now that F9 FT has started to fly.
But as I said, I think there's a decent chance I may be wrong.
~Jon