The latest word today seems to acknowledge that a new IS will happen (still no word about the GS's fate) and that it could potentially grow in size. According to Lexus Enthusiast via Japanese magazine Mag-X, the next-generation Lexus IS will be unveiled in 2020 with dimensions much closer to those of the current GS. This does make sense, especially if the GS is a goner. It sounds like Lexus is combining the two sedans into one, but will retain the IS name. Sources say the 2020 IS will have a longer wheelbase and shorter overall length than today's GS, but that translates into potentially shorter front and rear overhangs.