The M6 re-opened earlier than expected however this article does say two further weekend are " reserved " just in case i.e. the 17th and 24th January
Scroll down slightly.
The problem there would be that the TomTom re-route would take you onto the A6 which is the official diversion and will be gridlocked.
There is no easy way of getting round it o_O
oh yes? stay in the east and by buy it. stay with tom tom he will show you the way, ad ee horse. ok pj