It's a shame, that fossilized Pokémon won't be more playable, when they didn't change the mechanic to put them into game.
We can await new version of Twist Mountain and some new version of Caitlin, maybe. There's no much chance to put the Pokémon on the bottom of your deck to make sure, you find one in the bottom 7 cards; the Tyrunt even has no ability, which can put it on the bottom of your deck from discard pile, so…
I hope, Tyruntrum won't be playable card…