Sooo... As the title says...
1. What determines which traits and colours are regennable? I've seen a few with 10points regennable, some with all colours but no traits.

2. Which species have been regenned already? Also can species have a second regen?

3. Approximately how long between each regen? I wanna know when the next one is

4. Do ALL pets of that species be regenned? Like, even themed pets?

5. Annnnd... Ik this is opinion but what do you think the next regen would be? Im kind of hoping its a Ryori.

Guide to Regeneration

1 answered in post 2 and 4

2 answered in post 2. Usually once a pet has been regenned that's it, but there are cases such as with puffadore's runes, which had the opacity of the white altered for several traits a while after the puff revamp that allowed puffs with those specific altered runes to change.

3 answered in post 2

4 answered in post 2

5 we already know the next species revamp is either fae or nyte, and will be likely based on which had a higher vote in the poll taken that determined that lups were next. There is a list of which species have yet to be revamped in post 6.
Ryori are low priority and will primarily be an art update, with regen questionable- likely no muts would be made regennable, though I feel it likely some genes will be moved.

THANK YOU