As things stand at the moment, BfL is the only scheme in town.
If the proposed share purchase scheme gets off the ground, then I have no doubt that a coming together will happen.
One little point to make is that BfL operates a S/O system, not a direct debit mechanism.
There is quite a difference as using a S/O puts complete control in the hands of the donor whereas a d/d gives much more power to the donee.