In same boat as you, maxed out on habitats, with (almost) every dragon (missing black diamond only) I have upgraded all available habitats to house 4 dragons and I still have dragons stuck in stables (infinity, genie)
We have been asking TL to upgrade pink/black/white to hold 4 dragons for a while now, if purple/blue/green/red/yellow can be upgraded what's the holdup with the other colours?
Then there's the "small" matter of the diamond habitats, I'm sure there is every possibility to allow them to hold more than 1 dragon, why is there a holdup with that too?
I think the thing that frustrates me the most is that I'm sure the "powers that be" are reading this but giving us no feedback, no indication they are aware of our plight and no extra habitats. Surely at least 1 mod is experiencing this too, they would collect all the dragons and expect to house them! Are we the only ones to have all dragons and therefore be unable to house them all?
Please TL, at least let us know you understand and are working on something to help with housing dragons, thankyou