Well, it's coming back to an internet near you this summer. :cool:
They're taking signups for Closed Beta testing right now with Open Beta coming soon. The game will be F2P with in-game items purchasable through micro-transactions much like World of Tanks.
Go to http://mwomercs.com/ and sign up.
Looking forward to pwning...er, seeing you on the battlefields of the Inner Sphere.