I hope there will be a future way of storing multiples of the same dragon-type, because certain dragons with certain features can easily become too valuable to be used regularly.
If you get a nice skin or good stats on your hatchling in a small clan, your optimal move is to never use it unless it's for breeding, which means you basically have a slot locked out.
In the future we'll get two large drakes, both of them will have a way higher ratio of certain sexes, meaning that you might very much hear "you can't use that, we only have two of those females"
And while we'll get more dragons in the future, i don't think this will alleviate this issue, because you'll still have a favourite one that you prefer, that might still end up being too valuable for general use.
I think we should either have a system where we have a max amount of general slots for any dragons (so perhaps X amount of slots, can be used for any combination of X dragons) or a way of getting spare slots. (However this would have to be accessible for smaller clans, otherwise it doesn't really solve the issue.)
Perhaps one slot per dragon, but a couple of extras you can use wherever you want.
What do you guys think? Are you happy with the current system?