No, and since you already exited out of Thailand and will make a new entry into Thailand again, a new TM.30 should be filed regardless, as this is a new entry into Thailand and the new TM.30 would reflect where you are staying now
Yes, there have been those who have been successful and issued a DTV E–Visa from the Thai Embassy in Vientiane based on long term medical treatments, appointments in Thailand
Congratulations on you and your wife's DTV E–Visa's! and, Thank You Very Much for your report on preparing, applying for, and receiving your DTV E–Visas
if you are going submit a DTV E–Visa application or any Thai E–Visa application anytime soon, then note the following Public Holidays during July 2025 for Thai Embassy in Ottawa and the same for the Thai Consulate in Vancouver
Unfortunately, the websites and Facebook Pages of both the Thai Embassy in Ottawa and Thai Consulate in Vancouver are not updated with the pertinent information for specific details about applying for a Thai DTV E–Visa in Canada (sorely lacking detailed info), but don't bother going in-person to any Thai Embassy/Consulate about submitting a Thai DTV E–Visa Application (n.b. there is 1 rare exception in the world) as everything is done via the Thai eVisa website