It'll be better when final release. There are already a number of characters that we know of that they are planning on adding as party members.
Karlach
Halsin
Minthara
Barcus
And who knows who else.
Karlach is the only one of those we know who is going to be a potential party member. There are three origin characters in the pipeline that will be playable/available as companions and we know their names already.
