Salaar and KGF 3 is likely to be connected (1978-1981 gap to be covered). If Guru Pandian's character is in Salaar, then his timeline should end with 1981
Salaar is likely to be the continuation of KGF 3, as per the hints thrown in by the posters
Salaar will surely have a link to KGF 3. Salaar will be connected to KGF franchise, as per moviebuffs
Action sequences will be much bigger in Salaar than KGF 3
Salaar first look poster also has a dark theme, there’s a chance for the film to revolve around Kolar Gold Fields