By a lucky occasion Cloudflare isn't blocking me from accessing Bitcointalk today and I can finally reply.
Welcome back

Is there scope or plans for adding any other stable coins options to eXch in the future? DAI and USDT are available on the Ethereum blockchain but are there any plans to spread out further say to TRC-20?
What
d5000 answered above is still relevant and can be taken as a full answer. We are still hesitant on adding Tron or Avalanche. We don't trust both project founders and specially the latter.
If you remain hesitant (after a significant amount of time) you must have your reasons for not trusting them. I am not familiar with the background of either of the project founders (Tron or Avalanche), I need to look in to this to get a better understanding of why you might be avoiding adding them as potential options.