At the time of writing PM Yulia Tymoshenko, PoR leader Viktor Yanukovych, and VR speaker Volodymyr Lytvyn are still in talks on the possible formation of a PoR/BYuT broad coalition. No-one really knows what the chances of success are.
But the question has to be asked, what's in it for Yanukovych? He is easily the most popular politician in Ukraine, and his party are well-funded. He would most likely win any scheduled presidential elections early next year, or this year, if president Yushchenko were to call early presidential elections. Parliamentary oppositions always strive to bring down the incumbent government, particularly if it is as 'wobbly', as the current administration is in Ukraine. This could still happen. So why go for coalition?
It's true that the oligarchs and financial-industrial groups that dominate Ukraine's major parties crave the political peace and stability a PoR/BYuT coalition could possibly bring. And none of them is keen to 'stump up' the $1/2Bn required for a presidential election campaign at the height of a global economic crisis.
Events last September proved PoR and BYuT had spent a busy summer recess last year plotting on how to weaken the president's powers. It is clear now that dialogue continued between them until now, and that PoR fancied such a 'shyrka' [the broad coalition now being proposed].
In 2005 Yushchenko dismissed Yulia Tymoshenko from her PM's position a few months after the orange revolution. In 2007 he dismissed a PoR-led VR in a constitutionally most dubious manner, leading to Yanukovych's exit from the PM's office, so both have a common enemy.
And it is possible that 'the new kid on the block', Arseniy Yatseniuk could 'pip' both of them to the presidency in the next presidential elections, so maybe not a bad idea to 'shut him out'.
But none of this IMO is sufficient for Yanukovych to join Tymoshenko in a PoR/BYuT coalition with Tymoshenko remaining PM, even if he were to be elected president in parliament in half a year's time. PoR have no other credible candidate for president apart from Yanukovych.
I believe that Yanukovych is aware that in any future presidential election he, personally, with his shady background would again be placed under the microscope, as during the 2004 campaign. It would be dirty - and no doubt, painful for him. And some of the mud always sticks.
A deal now with BYuT would 'clear the slate', provide absolution of previous sins - he would become a man worthy of the presidency - his criminal background, the theatrical collapse caused by the egg, the sweeties for Putin, proffessorships etc. all transferred to a previous life. He would be able to hold his head up high amongst the ranks of the righteous - his place in history secure. And to be able to present the winning football team with their medals in 2012 - the whole of Europe watching - what a prize!