Several new quests added, much harder than the existing ones.
Also, I plan to revise the quest/game progressing heavily. Here is my current plan: (This is NOT ingame yet!)
At first, only a tutorial is availible. Probably 3 missions, you use a fixed deck, so no deck building yet.
Once you complete the tutorial, you pick a color to start with (or maybe you just get a default color, say Red), and the first 5 questlines open in the Campaign. Booster shop and Coliseum still locked. You will get all the cards from the chosen color in the Basic set, but the others remain locked.
Each of the first 5 questlines has an associated color, and completing it gives you all Basic cards of that color. Completing the questline for the color you started with gives you the colorless cards as well as some extra gold.
Once you have completed all 5 questlines, you now have the full Basic card set. Now the Coliseum unlocks, as well as the ability to unlock the "quest sets". You unlock a quest set by paying some gold (likely pretty cheap). The booster pack shop is still locked.
Unlocking a quest set (there is one quest set for each card set, so right now that would be "Revelations" and "Dystopia") gives you access to the first questline of that set. It's a 3-quest long questline, and should be fairly simple. Completing the questline unlocks the other questlines for that set, as well as the ability to buy packs from the set in the Booster shop. The booster shop unlocks once you have unlocked at least 1 card pack.
The quests currently ingame is the first 5 questlines that you would unlock after the tutorial, as well as most of the the Revelations quest set.
As for name of the actual game, I am thinking something with Gate, like X's Gate or Gate of X. X is gonna be something like Destiny, Heaven, or similar, haven't yet decided.
Lorewise the Gate would be something that opened a few hundred years ago, and it is from that Gate all the magic power and magical creatures currently in the world entered.