Should I wait for a T490 update?

I am thinking of buying a T490 but I have heard that Lenovo is going to put out a newer model with the Comet Lake processor (not sure about Ice Lake though).

If the newer model is much better for the battery and is more future-proof (apparently it has Wifi6 which is supposed to be much better), then I might wait. But if it is going to take at least another two months and it is going to be much more costly, then I'll probably buy just now (since I can buy the T490 for a bit cheaper currently).

Do you guys know when it will probably come out and how it will be priced compared to the current T490 (intel 8th gen) model? Are the benefits worth waiting for?