Zain changes to Airtel. Not again!

I really thought that once celtel was purchased by Zain that the bi-annual sale of the company originally known as Econet Nigeria will stop but it seems that they had other things in mind. A visit to Zain(err....sorry Airtel) revealed that they have already re-designed the office and everything within it.
Who knows who will buy it next?

Sale Timeline:
Econet NG -->V Mobile NG -->Celtel NG -->Zain NG -->Airtel NG -->  
Who's Next NG