The DDS has awarded a series of contracts for preliminary design work for a new cruiser, the project is currently known as the Cruiser 2120 though may be renamed something like CGX once work officially begins on the type however this is likely to be a number of years away.
A DDS blogger has reported that the classified (but fairly low-security) DDS Allocation Database which gives a real-time snapshot of the status of every ship in the fleet now has an entry for a "Type 17A". This would put it in the cruiser category. However this does not mean that the ship is definately going to be built.