Yeah, the news of Sri Lankan board directive is here
Depending on whether it stands, the following teams will lose the following players:
Former captains Sangakkara (Deccan Chargers) and Mahela Jayawardene
(Kochi Tuskers), Suraj Randiv and Nuwan Kulasekara (Chennai Super
Kings), Dilhara Fernando and Lasith Mallinga (Mumbai Indians), Angelo
Mathews (Pune Warriors) and Muttiah Muralitharan and Thisara Perera
(Kochi Tuskers) are the other Sri Lankan players in IPL.
Since Muralitharan has retired, he can probably stay on, but the rest would have to leave. For MI, it would be a big setback, since they'd be w/o Malinga, but Malinga has been disinclined to play tests, and there has been speculation about whether he's deliberately preferring the IPL since he doesn't want to play tests
, but just the 50-50 and 20-20 formats.
About Dada, I don't see how Kochi gains by having him, since they already have Laxman. Dada's role would be no different from Dravid in RR and Laxman in KTK - in those 2 sides, both provide a sheet anchor role, and if a spinner is brought on early to curb Watson or McCullum, these 2 can then take a bulk of the strike and hit them out of the park, thereby shielding their big striker and enabling him to face the quicker bowlers. Sehwag is theoretically supposed to do the same for David Warner, except that he's been getting out early in every match so far.
So if it makes sense for any team to take Dada on the same grounds that Laxman & Dravid have been taken, it would make sense for DC if Michael Lum is included once Sangakara goes. Every other team already has one Indian, one foreign opener - Gilchrist/Valthalty, Watson/Dravid, Warner/Sehwag, Kallis/Bisla (or Gambhir), Jacobs/SRT, M Hussey/Vijay, McCullum/Laxman. In case of RCB, if they lose Dilshan to the SL tour, they'd probably replace him w/ Chris Gayle, whom they have signed on. But they do have a somewhat long batting line-up, so they could choose to have, say, Saurabh Tiwari opening w/ Gayle, followed by Kohli, AB, Pujara and the rest, since Mayank Agarwal is not firing. In short, RCB is pretty rich on batting and won't need Dada.