Conversation so far:
What happened to the Mashantucket Pequot Tribe in the early 20th century?
The Mashantucket Pequot reservation was created by the Connecticut Colony in 1666, but only 13 people lived on the reservation by the time of the 1910 United States Census.
Who was the last Pequot on the Mashantucket Pequot Tribe reservation?
Elizabeth George was the last Pequot living on the reservation and, when she died in 1973, the federal government started planning to reclaim the land since nobody lived on it.
Was the government successful in taking back the Mashantucket Pequot Tribe land?
and thus the Western Pequots were given Federal recognition, calling themselves the Mashantucket Pequot Tribe of Connecticut.
What happened after the Mashantucket Pequot Tribe won claim to their land?
In 1986, Skip Hayward and financial backers built a high-stakes bingo hall on reservation land, and later they added other facilities.
What happened to the Mashantucket Pequot Tribe in the 21st century?
the Eastern Pequot Tribal Nation of North Stonington, Connecticut briefly gained federal recognition. The State of Connecticut challenged these approvals, and the BIA revoked recognition of both in 2005.

Question: Have they done anything in particular with the additional land?
Self-contained rewrite: Have the Mashantucket Pequot Tribe done anything in particular with the additional land?