Tamron introduced new lens rebates in the US – see the details at Adorama and B&H Photo, for example – the Tamron 70-210mm f/4 Di VC USD lens is now $420 off with a final price of $379 (reg price: $799):
Fujifilm introduced new rebates for three of their medium format lenses: Fujinon GF 110mm f/2 R LM WR Fujinon GF 45-100mm f/4 R LM OIS WR Fujinon GF 32-64mm f/4 R LM WR
Today Sony introduced new rebates in the US with some new/low pricing on the a6000, a6100, a7RII, and a7II cameras. This sale will end on 4/26. See the full details here and here.