That's a loaded question and every agent in Seattle is going to say the area they work in will be the hottest but this really depends on how you want to live.
If you want to be in, as in the Seattle metro neighborhood / downtown then Queen Anne will continue to be the hottest in Seattle. It always has been and will continue to be so especially with Amazon's growth.
If you'd prefer to commute from a suburb because home size and yard space is more important than Bellevue/Kirkland/Issaquah are going to be hot.
Happy to help if you have questions about being in Seattle.
Jeff is right that pretty much every broker will have great things to say about the area they work in but honestly it depends on what your motivations are. Investment? Commute? New infrastructure? New construction?
On the Eastside I still say Kirkland. And I think that's evidenced by the amount of new development going on here (and it's selling like hot cakes by the way) and Seattle-ites that are relocating here. Plus it has award-winning schools, a small town atmosphere and a lake front downtown with tons of community pride. All within 15 minutes of Seattle and Microsoft. Plus Google is slated to expand their Kirkland campus where ParkPlace currently is.
All of the buyers we are working with -- who work in Seattle, Bellevue, or Redmond -- are most excited about the Issaquah Highlands neighborhood.
Let us know if you have any specific questions we could help with.
Best Regards, Mary