It's a daft pipe dream.
This idea that they're somehow going to be the club of North Wales is bizarre, and a lot of the goodwill they had when they escaped the National League has already fallen away.
If you're travelling to Wrexham from Bangor, Llandudno, Holyhead, Caernarfon, wherever, you may as well drive a few extra miles to Manchester or Liverpool, which is what the majority of match-going football fans in the area already do. These fans aren't going to switch allegiances because of Ryan Reynolds and a Disney + show.
Fans of League Two (and now League One) clubs seem to have grown quite disdainful of them and their rise. Some of it is probably through jealousy, but it must be quite galling to support a team that's languished at that level for a while, then a club comes from the division below, vastly outspends everyone around them, then celebrates their promotion like some sort of fairytale miracle.
The last census had the urban population at around 45,000, and the borough at about 130,000. They're never filling a stadium that large, even with PL football.