A special status seems like it'd be kinda hard to make & maintain, I'd prefer a world 2 at that point instead with a server in a different region.
Im sure it wouldnt be an easy thing to build and maintain, but considering how many times a second world has been declined, I dont see any other options really.
Your suggestion has been declined. This is realistically not feasible at all. It would require a major overhaul of all boss content, with each attack needing to be adjusted and tested with a fine-tooth comb to make sure it's balanced correctly. If any changes are made to make certain content easier, it will need to be done for all players, regardless of their ping. That being said, if there are mechanics in certain fights that are particularly difficult for players on higher ping, I would be very open to suggestions being made to adjust that content (for everyone) to make it easier, but the suggestions will need to be made individually unfortunately.