@Taskindo, welcome to the forums!
🙂 I am sorry to say that I cannot answer your question, since nothing has been officially said (leak: one way or the other). If you are thinking of a G750JH in 15" form factor, then I can confirm that the answer is no, since the cooling requirements of said computer would not fit in the 15" form factor. However, I am certain that the 15" will get some peace, love, and upgrades in the future, especially now that Haswell is out, and new NVidia chips are coming down the pipe in the next few months.