Sony is rumored to launch at least a new 135mm and a 400mm FE lens. And maybe (unconfirmed!) a new 16mm f/1.4 APS-C E-mount lens too. But also four more companies are rumored to launch new E-mount lenses:
Tokina will release two Firin lenses (Super Wide and a fast wide FE autofocus lens) by end 2017.
Samyang will release one or two wide angle autofocus FE lenses in 2017 (article here).
Zeiss next FE lenses may be announced by end of this year.
Sigma will launch their first FE lenses by very end of this year (35mm f/1.4 FE and a FE zooms some times later)