I am surprised Old Sharlayan didn't rival Limsa with how convenient that place is, honestly.

Personally, I wouldn't mind the scrapping of the class/job system. In fact, I would go 1 step further and say that quests for jobs should start at Level 15/20, and then just give people complete and utter control in what city state they want to start at. It sucks that your starter class determines your city state - I would love for these to be distinctive, especially when I think of how I would've liked it as a new player.

Sets with just static bonuses run the risk of being more advantageous for one role than another, so any possible adaptation of this idea would probably be "relic armors" that you build and tailor for a specific job instead of developer-specified bonuses. This sort of reads to me like stat-customizable armor from some content or another would be the most they're interested in exploring currently.
Yes please. Give this to DoH/L too. It's muchly needed.

Beastmaster is planned to be different from Blue Mage, but a challenging part of the design is making something that's different from what they did with BLU while still also being different from current jobs and having its own angle.
Yes please, and whilst you're at it, try and at least conceive a way that it can be used in all content appropriate for its level. Be it Eureka, Palace of the Dead, Heaven on High, etc.,