The press release also explains a little about Saga's business model, which will be microtransaction based, with players purchasing 'booster packs' that have new units and spells to use, and a subscription fee will not be charged.
We have not covered this game before, so a quick visit to the homepage's FAQ was necessary to learn a bit more. It is basically what you would expect from an MMORTS -- an RTS with a persistent world. The world is based on traditional fantasy (dwarves, elves, spells etc.) and you will be able to trade troops with other players. In-game activities include building armies, cities and kingdoms, taking over new lands, and multiplayer questing.
If you want to be considered for this last Beta phase, visit the sign-up page and create your account.