Neither of those div will be added anytime soon if ever, shouldnt say ever but Dana already said after this they are done for a while.
Adding 115 135 you have the access to all the divs. 105 can move up to 115, 125 can move up or down, 145 can move down.
So you cover 105 to 145 with those 2 div, they are also the two best wmma div so they wont be adding 105 female div since those females will end up moving up. Penne is already gonna move up, tried up for TUF and Karate Hottie likely ends up in the uFC 115 at some point.
Mens 115 was talked about cause of asia and Mexico and India figuring smaller men will come from those countries and that div will be needed in the future. Its possible they might need it but it wont be happening for years and years if ever.
I think they are gonna be good with the div they have no.