I cant see it happening myself
I don’t think my little pony quite has the mass appeal needed to make a theme park. I mean take alton towers for example, it has no particular theme and it appeals to all ages and genders.
A my little pony theme park only appeals to little girls and bronies, hence doesn’t have the mass appeal to drive up sales like disney world and legoland do (lego and Disney appeals to everyone, cartoon ponies less so)
I heard apparently a modern ride is about 10-30 million to make, so if you want 12 rides that's easily upwards of 1 billion dollars and that’s not including employee pay, legal stuff and other fees
And running a theme park isn’t cheap, as I said if you’ve only got little girls and bronies in your park your not making enough profit to keep the park running.
However a my little pony ride is completely possible since that’s more or less free from park running costs since its in an existing park