We know that BBC America will be showing the second season of Ripper Street beginning December 1, 2013, yet BBC One hasn't announced the release date in the UK.
Jerome Flynn posted on his facebook page the following:
As for the show, well it feels like we have something that's more settled in its skin playing to the strength of the wonderful characters we have on board, and I would say more exciting than the first. They are talking of an earlier transmission date, possibly October, so it shouldn't be long before you can judge for yourself
Keep your fingers crossed for an exciting new season!