full t/o or offer on irn's stake in tampakan?

Given the events of the last attempted takeover/sale of IRN and/or the stake in Tampakan what is the most likely offer this time around?
Will not a full takeover once again be possibly blocked by Xstratas stake in IRN?
Is an Alson's like proposal once again a more likely outcome?
I know the Stanhill offer required 90% acceptance and was therefore blocked by X's 17.8% of IRN. Is someone likely to be happy to have a lower acceptance threshold or is X likely to let a partner come in if they think they have the capital backing to help out with the project?