If it ever flies, it'll orbit Europa...
and several other Jovial moons. Depending on the sensor suite, there may be no need for a dedicated Europa Orbiter program. From the article:
Jupiter Tour would utilize a sophisticated spacecraft capable of multiple jumps from an orbit around one jovian moon to an orbit around another. Such a capability will allow close, detailed, and long-term studies to be made of many of the members of Jupiter's retinue of 40 (or more) moons.