ZZounds is showing an arrival date of Feb.6th. AMS and Sweetwater just say 'Coming Soon'! Curiously, neither Musician's Friend nor Guitar Center is showing the new Rumble line on their websites.
I'd just call your local music store(s) and ask when the new Rumbles are expected to arrive in their showroom.
Only Sweetwater has announced special "Fender Day" savings and slashed prices on existing V2 Rumble stock.
A Fender Precision Bassman Since 1972: Official Fender Precision Bass Club #1115; Fender Jazz Bass Club #1211, Fender Rumble Club #58, ZOOM Owners Club #154