Hatchiling Pet

so i saw a video on youtube about hatchlings,
what comes next after you lvl your hatchling into a strider?
do you continue to lvl the pet after strider stage? or just use it as a mount now?

also, can it evolved into something else after a strider?

suggestions and tips would be great.

You use the strider as a mount. It can be evolved into a Wyvern, but you must be a clan leader, with a castle/fortress to get it.