I think I have an Idea of the next Melee Class!

[MikkoAkure]

I think it'll be Beastmaster.

I don't think the t-shirt was hinting towards the job, but rather just hinting towards the WEAPON that the job uses.

That being said, the t-shirt had a grim reaper. The grim reaper is depicted with a scythe.

This would mean the new job is a scythe-wielding job. Who used a scythe? Ranjiit. What FF job is most similar to Ranjiit? Beastmaster

Be careful what you wish for. According to an interview with YoshiP in 2019, he said that it would be a limited job.

By utilizing this concept of limited jobs, I feel that it could potentially open up possibilities to explore the addition of jobs such as like Puppetmaster and Beastmaster.