According to the PSBJ, Bosa Development, the developer of Insignia in Seattle and One88 in Bellevue, is planning on building another condominium tower in Bellevue. It will be across the street from where One88 is currently under construction at 205 105th Ave NE, where Sushi Maru is currently located. The new tower, like One88, is also planned as a 21 story tower.
Also mentioned in the article is the possibility that more planned apartment buildings will instead be built as condos. This is interesting insight and with Spire in Seattle being switched from apartments to condominiums, we might indeed start seeing more of these switches of use coming down the pike.