There have been multiple endings shot, some which would set-up a different character picking up the mantle. Phoebe Waller-Bridge, who plays Indy's God-daughter (supposedly) is one of the characters they might push for a spin-off. Not stoked about it. She already ruined one franchise recently (co-writer on the latest Bond film which I am dis-liking more and more).
Also sounds like the rumored appearance of Short Round isn't in the film either. The recent picture on Instagram of Ford and Ke Huy Quan wasn't from the set but a chance reunion at a convention. Ford didn't even remember Quan's name and asked him if he was Shorty.