I'm not sure what you mean about laptops, they've been around since the 1980's.
Also, console gamers have ALWAYS outnumbered PC gamers. And if we are really talking about just reaching the widest possible audience, the correct answer is mobile (i.e. phone games). Their numbers are stomping every other platform into the ground.
If they can do a console-port, great! The core audience for this type of title is going to be PC gamers, though. Not many console gamers chomping at the bit for TBS.
Paradox Interactive runs a very successful model on PC platform gaming. They are deep strategic titles, and would not interest the average console gamer. More importantly, they open up the modding scene in a way that consoles just can't begin to compete with. I hope this studio DOES utilize DLC. We need them to make money if we want to see the market continue to produce these types of games.
P.S. For anyone who hasn't tried BattleTech, I highly recommend it. It hits many (but not all) of the JA2 notes. I would hold off on the RougeTech mod until you have finished the original campaign, much like 1.13.