To be comepletely honest i doubt they would remove any of the other spawn eggs, Yet I would say that the spawn shop needs a bit Renovation like with the second floor for example, Who really pays $170 some dollars (Ingame) for a potion that lasts 4 min.
Basicly take out the items that arent really needed/ Purchased from the shop.
(At this rate the spawn is going to need a 3rd floor xD)