CNBC's deal reporter David Faber who got the scoop on the TXU Corp. (NYSE: TXU) buyout has another big one. Apparently, the big-time private equity firm, The Blackstone Group, is planning to file for an IPO within the next couple weeks.

Funny enough, Blackstone's CEO, Stephen Schwarzman, has indicated -- on many indications -- that an IPO was not in the cards. Why deal with all the hassles? Well, I guess Schwarzman could not ignore the huge $10.4 billion IPO of Fortress Investment Group (NYSE: FIG).

Faber thinks a Blackstone offering could fetch a valuation at least twice that. It's stunning considering that it was in 1985 that Schwarzman, who owns about 40% of Blackstone, invested $200,000 to start the company. How about that for an ROI?

I think it's a good bet that other premier private equity firms are preparing for IPOs. Yes, things are going to get very interesting – very soon.

Tom Taulli is the author of various books, including the Complete M&A Handbook and the EDGAR-Online Guide to Decoding Financial Statements.