Camber will change in the negative direction - probably not enough to require alignment adjustment, but you may not know until you actually measure. Toe and caster could also change slightly.

Your best bet is to budget a four wheel alignment. On my 19OE I have the front camber set at max negative and front caster at max positive, equal side to side. I just set the eccentrics to push the pivot points as far outboard as possible, then backed off the maximum side to equal the opposite side and ended up with -0.75 deg. camber and 10.5 deg. caster.

It definitely improves steering response and reduces understeer, and there is no uneven tire wear with 7500 mile rotations. I checked the rear, and it was very close to OE nominal value, so I have never made any adjustements at the rear.

Duke