Hi,
there are currently 2 Promos running in the Toontrack web shop:
- Buy EZKeys or EZKeys Sound expansion and get a free MIDI pack
- 20% Off the Essential Pianos Bundle
Regarding your other question; I have never heard of any company publicly telling customers to hold off buying products since there may/will be a promo campaign coming later.
I do recommend shopping around at resellers, you may find local specials.