Honestly, looking at DLC really makes me think Crash is a strong inclusion. Gonna pull a
BluePikmin11
and type up a huge analysis.
When looking into the DLC for Smash Ultimate, we have to realize the time period plays a crucial detail. Third parties are likely to be decided upon an negotiated earlier than Nintendo characters. The data within Smash 4's patches would allude to this. Bayonetta, Cloud, and Ryu were clearly planned before Corrin. As such, it would make sense for use to assume that if a third party character was chosen, they would have been chosen within a 2017-2018 timeframe.
Crash's revival was announced at E3 2016 to massive applause, and his revival came out in June of 2017. Plans for the ports were on their way likely in 2017 as well, given that Crash was a timed exclusive. This lines up well with the assumption that the DLC characters were looked at after the project plan was finalized (Around early 2016) it would imply that Crash would potentially be on the radar for Nintendo to consider as a guest character.
Looking at patterns and past statements is a mixed bag for Crash. One one hand, Sakurai has stated that he considers Smash this grand celebration of Japanese video gaming. While Crash is notably Western in origin, he has a sizable following in Japan and his PS1 games were very popular there. The fact that currently stages and music come with the character could imply a third party character. Corrin in Smash 4 did not come with a stage, while the third party characters did. Looking at past patterns is always flawed, but it would suggest that third parties would be more likely.
Crash certainly has enough star power to be pushed for Smash. His series has pushed over 56 million units in sales. In smash, he is only beaten by
in sales. Having a recent revival, Crash is at a height of popularity he has not had since the 90s. In the 90s, Crash was a king. He was Playstations mascot. While Spyro may have a claim to that crown as well, Crash came first and held that crown first. There is a reason N Sane came before Reignited. Crash is popular across the world. While Crash conceivably did not do strongly on the Ballot, as there was not much of a campaign for him at the time, in modern times Crash is spoken of a lot. Crash is one of the most popular characters in Japan for Smash, being within the top ten. He is popular within the west as well.
Nintendo and Activision have a decent relationship. Nintendo was willing to let Activision use
for Skylanders. Activision also has consistently released games for each of Nintendo's systems, save for the Virtual Boy. Activision would likely be a big enough company for Nintendo to notice, as they are one of the largest companies in gaming.
Overall, I feel Crash has a solid chance of getting in as DLC. His star power and the timing of selection benefit him greatly. I feel that he is a clear frontrunner in terms of Western Third Parties, alongside Rayman.