Her posting a few personal selfies of going to the gym gives no reason to think she's making any sort of comeback after 4 years absence. She's not maid any such statement on any of her personal social media either.
As for the new admin of her old website, it's even more amateur that the previous one. Only showing a holding page that's needed to be corrected for elimentary errors. There's nothing on there that would indicate it has any connection with the real Christina, even begging for new models to send in there profiles. Remember how the old Shannonmodel site was used for numerous diffeent girls, all called Shannon. If they ever attract new models, they'll all be called Christina .
It's front page, the only page now, says "Christina Remix" would indicate it maybe a rehash of her old stuff, all of which is available on the net already. As that's available for free, there seems no scope for a new admin to justify creating a commercial venture out of the site.
Actually don't know where the "Hello xxx....." message above came from, as the new admin has not replied to any emails so far. Further, the new web page has stalled prior to any current issues with our beloved C, hasn't been amended since 12th Oct, and looks like an easy target for hackers. Not promising.