Honestly, I highly doubt Wedge is going to be farmable after this month. Anyone here remember Cad Bane when he wws chromium exclusive? They gave his shards away for the monthly log in while he was still exclusive, and it took a month or more after that for Cad to become farmable.
I bet Wedge shards will now be available in chromium packs. As a way to try and entice people to buy them. Wedge was an aurodium hero, then completely unfarmable and unavailable anywhere. He most likely won't make the jump to f2p farmable before Kit Fisto, Darth Maul, or Clone Rex.