Maybe I'm a bit more sceptical than you. It's kind of an ongoing irritation to me that Hollywood is just milking franchises dry to the bone. The magic of Hollywood to me is that new ideas were being tested and the most wonderful things came out of them. These days it just seems that they're trying to keep every cashcow from the 70's, 80's and 90's alive, while the ideas have long lost their freshness.
Disney is one of the worst offenders of this, in my opinion. I haven't been enthousiastic about Star Wars since the prequels came out, but somehow Disney managed to make the franchise even more fragmented and illogical, with zero respect for the original vision or characters. I get that the Marvel universe is awesome to some people, (at least they're doing something fresh with those franchises,) but even that formula is starting to get stale and unfollowable.
In short, I'm very sceptical of a new Indiana Jones film in general (especially without Spielberg and Lucas at the helm), and news of CGI de-aging and preparing characters for a spin-off are only making me feel more uneasy.
And Thunderpeel, you're right. I'm very sensitive about Indy. He's my #1 hero from when I was younger. I just don't want to see him dragged through the mud (again.) I'd rather have them let sleeping dogs lie.