Hi, if you're looking for a laptop, I would say no. The 8th gen laptop chips are going to be like 7th gen. The main difference is just less power consumption resulting in thinner laptop designs.
I'm terms of power they are almost the same. Only the coffee lake desktop CPUs are being improved with 6 cores. If you want a real change in the laptop cpus then you're going to have to wait till Ice lake which is almost a year away.