I'm wondering how RMEs and AF armors will be upgraded. They are adding a lot of stuff, but not much of it involves direct drops. The options are:
1) New quest rewards - Possible for AF, but I feel that implementing 100 AF quests might be slightly beyond SE's capacity at the moment. Very unlikely for RMEs.
2) New monster drops / world drops - Possible for RMEs or AF, but pretty unlikely.
3) New hard BCNMs - Most likely source for at least one of the two upgrade types.
4) New WKR reward - Very unlikely for both
5) Monstrosity Rewards - I could see them maybe working AF into this point system, but it doesn't seem the most likely to me because they've already given examples of accessories with upgrade paths.
6) Magian - They specified that the RME upgrades would not be magian related, but they didn't rule it out for AF+2.
I basically bet that we'll be seal farming for a while and that at least RMEs will be tied to the hard seal battles.