he might have been referring to the ThunderBolt from HTC. it will be 4g, and it is coming out in a few weeks. it is an Android device, but single core (not dual core like many of the phones scheduled for release in the coming months). many people "confuse" an Android device as being a Droid. with the exception of the Incredible, "Droid" is a branding name that is used almost exclusively with Moto phones.
so, if you're looking for a Moto Droid 4g phone, the first one will be the Bionic. the DX2 is coming out in May/June with a dual core, but it's not expected to be 4g. whether or not the D3 (or the rumored Solana) are released later, and released as 4g, is all largely speculation.