From the announcement:
The reprint of the BattleTech Introductory Box Set has finally hit the US port and so we’re making pre-orders available immediately! As soon as it clears customs and hits our warehouse we’ll provide a Street Date for when it’ll be available to stores as well.
However, don’t forget that this isn’t just a reprint. While all the printed material is the same, we spent the time and resources to hugely increase the quality of the 24 miniatures. So while they are the same BattleMech designs, the quality increase is shockingly awesome! And to top it off, we switched out the previous Thor andLoki for the re-seen BattleMaster and of course the seminal Mad Cat! Below is a quick photo of the quality from the previous box set and the new quality: