He is either confused or deluded.
WOW have announced Stansted for 2018 with connections to the North America but have no intention of flying from Luton as well, you may be correct with the confusion regard WIZZ or WOW but I honestly don't think that is the case here but even WOW are not going to be ordering any A350 anytime soon and have made no such intention on doing so.
The poster clearly states Luton to North America but I am getting the impression it's 'that he would like' WIZZ to fly from Luton to North America and has either dismissed the official statement from WIZZ stating otherwise or hasn't read it, but the A350 order is a bit of wishful thinking I would suggest.