Sigma officially launched their teaser for a September 9 announcement. We already know they will unveil the new 24mm f/2.0 and 90mm f/2.8 FE lenses :)
Nokishita leaked both lens specs:
90mm F2.8 DG DN | Contemporary
11 lenses in 10 groups
9 diaphragm blades (circular diaphragm)
minimum shooting distance 0.5m
maximum shooting magnification 1: 5
filter diameter 55mm
Size φ64×59.7mm
weight 295g
Suggested retail price in Japan the same as the 35mm F2
Sigma 24mm F2 DG DN | Contemporary
13 lenses in 11 groups
9 diaphragm blades (circular diaphragm)
minimum shooting distance 24.5cm
maximum shooting magnification 1: 6.7
filter diameter 62mm
size. It is φ70x72mm
weighs 365g
compatible with magnetic caps.
Suggested retail price in Japan the same as the 35mm F2