IMO, since there were takeovers using more than 140,000BTC we will see 150-250K btc takeover by Blockchain in the next few weeks, and since the biggest company that seems to be in troubles and needs a takeover is MTGox, I think there's high probabilty its MTGox they are buying. Furthermore, blockchain helped MTGox with the fixing of TXID and they know the business well, and they have/had good/friendly relationships.
Every time I've heard AA interviewed he is spitting blood about how bad Gox was and how it's good Gox is dead.
I don't think MK is on friendly terms with anyone any more.
Everyone trying to help Gox with TM (and I don't remember BC being part of that but...) got exasperated by MK's response and left him to it in the end.
Gox isn't worth 140,000BTC. It produces $2m profit a year. At 5% ROI that makes them worth $40m, but if it was my money, at that risk level I'd want at least 10% ROI making them worth half that.