There has been some leakage of what? Pretty much what was already published.
Before anyone starts making life changing decisions much better to wait a while until the government actually comes out officially with the proposed new immigration rules.
For all we know there may be a number of 'if's' and 'but's', 'get out of jail free' clauses so to speak.
At this time we just don't know the full story.
I know it's easy for those of us here in UK with our loved ones, but it doesn't make sense to finalise any decisions based on what we don't know.