BMW and Williams, can they come together again?

My favourite Formula 1 team in car racing, was the one, which was the result of the union of BMW, and Williams, irrespective of their faring in the championship. Since then, BMW has united with Sauber, and, Williams is going to use the Toyota engine, in the quest for F1 glory.
The break up between BMW, and Williams could not be termed as amicable, if reports are to be heeded. It did not leave a pleasant aftertaste for the fans of these two great brands. Williams is a team known for it's expertise in F1, and I was an admirer of the BMW engine used in F1, last season. Understandably, the seemingly indifferent showing last season, was the cause, of the break up. Maybe, the two parts of that Team, BMW, and Williams, were too proficient in their respective fields, so proficient, that their individuality, emerged triumphant, over and above the team that should have been.
My favourite teams are the BMW Sauber, and the Williams, teams, and I will follow their respective fortunes, in the next season, with interest.