I sent Prokhorov's blog to a Russian-speaking American friend living in Russia, who responded, "Pay no attention to the robot translation. I think he is serious."
Indeed, Reuters thinks so, too, reporting:
Prokhorov's proposals, sent to existing Nets shareholders at the weekend, would see his Onexim group provide a loan to build a substantial part of a new arena, according to a post on his website, md-prokhorov.livejournal.com.
How that might work remains unclear. But expect more details to emerge soon enough.