Pretty much what everyone has said.
Blacksmithing: The banded market is going to have high demand. Forged Javelins are awesome (highest range throwing weapon craftable by non-humans) but heavy. Fine Plate was not day 1, but there will be a bit of Fashionquesting going on when it enters.
Fletching: IMO pretty much every Ranger on the server will be making their own arrows to pass the time while soloing.
[You must be logged in to view images. Log in or Register.] If you really need a player-crafted bow, you should be able to find one.
Tailoring: a few folks will level this to where hand-made backpacks are trivial then parked until Velious. You might see some raw silk & cured silk sales when the recipes land.
Pottery: mostly a support skill. Dieties came much later, so it's gonna be poison vials (which iirc was not day 1) for poison (ROG) and vials of mana (ENC, Tailoring). Make Poison is such a money sink, too. It's kinda cool, I guess.
Brewing: Support skill - the cultural smithing recipes will not be in day 1, so you won't need brewing for much other than Rogue Redemption, iirc. (Alcohol Tolerance wasn't really even useful until LDoN). Heady Kiolas will be in demand, but the trivial is low so most tailors will probably just skill this up themselves.
Baking: Maybe someone who wants to faction in Oggok. Monks might raise this for fish rolls. The rest of the server will be happy with their muffins, milk, foraged food and looted rations.
Fishing: You might see the odd baby necro doing this to fish up rusty daggers for pet weapons.