I think it's time to state this simply.
There has been no confirmation by the park that Tomb Blaster is receiving any work, or a re-theme. It might happen, it might not.
Until then, rumours are just that: rumours. It doesn't matter if Nick Hutson, Theme Park Giraffe, Doughnut Dan, Gil Lible or Professor Pepsi Burp have "confirmed" or said stuff.
The best thing to do is to wait until a park confirms something before believing it. Until then, it's best to take anything else with a pinch of salt and not think something is definitely happening just because some guy said so.