Baseball is very different from cricket and there is no comparison between two games. I am sometimes surprise to know that USA participates in almost all games but why they never try cricket ? Or maybe they ignore it purposely ?
As JSRAW pointed out, many of the countries differentiate between an Olympic sport and a non-Olympic sport. That's why many of the sports bodies (such as FIFA and FIBA) made a lot of effort to get their respective sports included in Olympic games. But the case with cricket is just the opposite. Since the last two decades, there have been delaying tactics from the ICC to deny any discussion on this subject.
Will it be in the next Olympics?
If cricket gets added then there will be a lot of new countries that will start playing it. The only format that can be used will be T20 or T10. I found T10 more exciting than T20.
No. It won't be. The organizers for the 2024 Olympics (Paris) were very keen on getting cricket included as one of the sports. Normally the governing body of a particular sports have to apply for inclusion in Olympics. But in this case, the organizers actually asked the ICC (in 2016) whether they would be interested in including cricket for the 2024 edition. The ICC never cared to respond, and the time window closed sometime in 2017. Rather than an outright "no", the ICC has been resorting to various delaying tactics.