I’d very like to see some of the older mons get the same treatment with their level up events as the newer ones. Arbok and dragonite especially, as them only having one event at lvl 100 is a bit of a bummer.
Also, I have my own personal lil suggestion if you’d be open to it: I thought about how it could be nice to have the mons potentially have an outfit of some sort they could wear that could be either an optional toggle or happen during certain lvl up events. Can be outfits that can match their personality or even something that’d go well with their growth type. For example, a more dominatrix type outfit for arbok (leather or latex, corset, shoulder length gloves, thigh high stockings/heels, etc) or something cozy for eevee/nidorina (very loose fitting t-shirt and thong).