Alvin Kamara tweets “Great news cominnn”

he could have just said what the good news was

These players know exactly what they're doing with their vague, cryptic tweets and are loving every second of it

A player will post something like "I'm really out of shape, game's in trouble" fans are all abuzz and panic then the next day "I've been getting crushed in Call of Duty lately" the whole time giggling their arse off

It's either AK doing what he always does trolling for reactions or it's a business related thing and he posted that to build excitement and get hits before he markets some product or some business he is involved in.