MT and wicket are outside the normal cadence and that's fine.
It's a return to the old style- 2 to 3 vaults if you want them 7 star.
Less if you want them 5 or 6 star.
Longer if f2p. Even if it's twice a month (which it won't be), that's over a year which is longer than a hard node farm (when you take into account bronziums etc.).
The problem with these two is 7 star unlocks Zeta. An average of 8 per month for those who have both at 7 star. That's 96 extra Zeta a year. Good luck trying to compete with those guys. F2p and those that spend smaller amounts won't ever catch up.