The software itself, i think it is very good, i don't think it is missing anything but maybe the others can suggest stuff to bring it to wigy for development.
In my oppinion GCCG is the salvation of the game, even tough there is nothing like playing a real life card game while laughing with your friend and having a drink. Still, it is good to create
more interest on playing online, so the community will never cease to exist:
How to do it:

Make a tutorial on how to use GCCG, start with how to install, how to build a deck, how to play, etc. I think there is one in spanish forum, will try to find it.

Organize "official" online events more often. Aternate formats is an easy way to not get the people bored (sealed Hero/minion, challenge decks, hero 1 deck, scenarios, DC, VC, 3/4-deck, etc)

Offer real prizes for events (for example:
1,
2)
To make it happen we basically need people with spare time and spare money to spend on the game. If we get the treasury funds back, it could be a nice thing to use that money for. Of course a prize like number 2 will require huge planning, but it's a good example and probably the best prize someone could get. Regarding free time, i offer myself to organize any event, anytime

So, what do you guys think?

In which other ways could the online game be improved?

What are the pros and cons of the ideas i am suggesting?

What i am missing?