Nah, expertise stat doesn't exist anymore on gear. They removed that maybe 3-4 years ago.
And technically there is still the very small (0.00000000001%) chance that open world pvp can happen but they made it so open world pvp happens on another map server (they call it an instance, but its really a separate server with like 1 player at any given time if youre lucky pretty much). Nobody goes on that map server by default, especially not low leveled people.
I only really saw those map servers empty or with 1 player like I said, although I distantly recall one time these years ago people wanted me to come help them quickly farm a world boss with their 20 person guild before swapping back to the PvE map server.
My old guild (way back now, 5 years ago maybe?) used to organize big events for open world pvp on those separate map servers but thats kinda stopped since the person who used to do that stopped playing. I saw on my steam friends list that they play smite now too, but I haven't talked to them in a while.
You could maybe do organized open world pvp like that if you advertised for it, but your chances of a low level gank forcing them to get their mains are like 0.00000000001%.
Oh also, there's sometimes guild vs guild open world pvp during the official organized events but that attracts maybe 10 ranked players who hang around on Ilum chatting and emoting at each other, maybe 1 or 2 duels. And then when some dumb casual guild tries to attack them everybody kills them.
Swtor devs are very anti pvp now imo, thats partly why we left to play Smite.