Next year is only 5 months away. Again unfortunately I don’t think that’s something that is a priority for the Thai government atm, however much you or I might like it to be. I’m in Thailand and TBH outside the tourist places things are remarkably normal. Many workers have also gone back to their home villages.
It's obv all opinions but I guess that's what you're asking for right? I'd say no, not for short-term tourist travel. It seems like COVID is spiking up again in many countries and that's not going to get better in 'winter' for many of them. The Thai government is being v cautious. I think Elite purchasers will be the next allowed in (it's already happening very slowly) so if that's an option for you given your circumstances, I'd say go for it.
I don't think that would be possible but maybe worth asking about the process. I'd have thought your best bet is to get back Thailand and try to renew in country, either via an agent or by yourself.