There has been a rash of potential new long haul start ups over the last couple of years, precisely none of which has yet carried so much as a single passenger, or a single kg of freight under their own AOC. You've got a pretty FlyPop A330 possibly still running around operating adhoc charters using a Portuguese AOC, Hans Airways with an A330 on the UK register, currently growing roots on BHX ramp and the mob (who's name escapes me) planning to operating to the Sub Continent from LBA that has no aircraft, no AOC and I believe has no sunk without trace and now a potential operator from BFS to North America. On the cargo front there is One Air, who's 747F is still operating non-revenue flights.
If Fly Atlantic get further than a website then I will be surprised, but I don't think I'd be giving up a decent job with a regular salary to chance my arm with them as it stands.
It would be a very pleasant surprise were it to come to fruition!