I can't see them doing anything with the MYP's performance unless Ford is just crushing it with the MME. I would guess then as a matter of pride/bragging rights Elon might uncork some more power.
At the same time, nothing might be done if the MY 2.0 has some changes coming we aren't aware of. So they might not waste any more time on developing the performance of the current platform unless it would directly translate into the next Gen.
While I am a serious performance junkie at heart, for a daily driver I really can't say I have really wished for more power with my boosted MY LR. Even towing 3,000 pounds behind it, it does a very good job.