If they are going back into long haul then they must have some sort of plan and an idea of the market they want.
With the MAX they could look at US East coast from NCL GLA/EDI CWL BRS BHX MAN LBA LTN and LGW.
Same airports with a wide body but to places like Florida the Caribbean and the US West coast as well as Asia. From some of those cities they'd have competition but from a lot of them they wouldn't or the competition is very light.
They may well have identified gaps in the market that they can fill.
I wish them luck.