That time frame would certainly be more reasonable than six months. That being said, it will also depend on the evolution of the bill, by which I mean the changes that will be made to it, particularly in the upper chamber.
So that doesn't necessarily mean that the coming into force date can be set at 12 months. Certain regulatory processes involve fixed steps that we don't have much influence over.
The time frame you're suggesting is definitely better than six months, but I think it would still be too tight in some respects.