The James Sewell Ballet, which moved its home base to the Twin Cities from New York a decade ago, has always received rave reviews and enthusiastic audience reactions when it tours around the U.S. But packed houses at home have been harder to come by, and this week, the company announced that it will be moving across the Mississippi River, from a college auditorium in St. Paul where Sewell has performed for years to the big, lavish State Theatre in downtown Minneapolis. The State will be hard to fill – it seats 2,100, as compared with 656 seats in the St. Paul venue – but the company is counting on the extra drawing power of the Minneapolis theater district, as well as on research that suggests that most of their audience lives in Minneapolis and its suburbs.