GT has said there are no plans for bass lessons. Jamplay has bass lessons but I personally don't like them. Scott's Bass Lessons is extremely good (I am a member of both but will probably be dropping my subscription to Jamplay when it runs out). You can get either subscription for around the same price but in my opinion SBL is far superior. You can also get a ton of Scott's lessons on youtube for free but for the price to join there is so much more. Hope that helps a bit.

Tim