MMO-Champion is datamining the Alpha beta all night. I saw 2 new companions listed. possible 3rd :
Old Cooking Pot - Teaches you how to summon Lil' Leftovers. ---Doesn't say companion but possible
Carrotus Maximus - Teaches you how to summon this companion.
Mechanical Toucan - Teaches you how to summon this companion.
Also new safari hat :
Savage Safari Hat - Huntin' pets is dangerous business. Don't go out without your hat.
Sorry if this isn't in the right spot, but I found it interesting and thought maybe others would like to know about it. Mods please feel free to move if this isn't in the correct forum
Edit: Thought I should mention that as of now this is just strings of code, no images of any items have been posted. The only image datamined has been a loading screen.