I will miss this site - everything here is so easy to reach, it is very hard to get lost in the site and the design is very smooth (not an eyesore). Guess we should enjoy it till we still have the opportunity :/
i'll definitely be using outof.cards once they change the design and add some trophies or ranks.
There will most likely be alternative skins for the site over time to make that customizable. Can't please everyone! Until you can.
As to the other, they have said that they plan to incorporate everything from here over there, but it will take time to do so, especially since right now they have to care for both sites until this one shuts down.