The Big If What Anwar's Pakatan takes over Putrajaya?

The lingering question is what will be the political landscape in Malaysia if the opposition Pakatan coalition will indeed helms power post the 13th General Election to be held anytime from now.
The scenario in the Federal level is crystal clear in that Najib and his cabinet will vacate their lofty seats in plush precints of Putrajaya, and, in Parliament, they will be switching sides with Anwar Ibrahim and company.

In the various States where the opposition win, of course we will see new Chief Ministers and Mentri Besar heading those States. This is where the mind is thinking of as far as Sarawak is concerned. One thing is certain; Taib government will still be intact as there will be no election for the State of Sarawak as they had just had theirs only earlier last year (2010). Sarawak is "UMNO" free, as they are ruled by local based parties headed by Taib Mahmud's PBB and their coalition partners of PRS, SUPP and SPDP. This is where the plot thickens! These political parties are in the BN fold headed by the presently ruling UMNO.

Now, if UMNO and the rest of the BN coalition loses grasp of the Federal Government, will the ruling parties in Sarawak then abandoning BN and switching sides, or, staying status quo and becoming an opposition State?If this scenario unfolds, it is intriguing times ahead.

Taib will be facing the biggest dilemma of his political career! If he stays with BN and still leads an opposition State, am sure a federal government led by Anwar will hound Taib and company now that the MACC and the Police will be at his ( Anwar's) disposal!

Will PRS, SPDP or SUPP then abandon PBB and join Anwar to be its ruling partners? More interestingly, will Taib immediately fly in his Stateowned jet and be the first person to offer congratulations to Anwar in Segambut ? Your take?