Luis has played in the Dominican Winter Baseball League for many years. He was even playing last season at the age of 45 in a kind of fair well tour. He has played his entire Dominican Winter League career with his hometown team, the Aguilas of Santiago, DR. Luis has the all time record for hits in the Dominican Winter Baseball League with 877. The Dominican Baseball Guy thinks last season was his last year in the Dominican Winter League, but who knows, he may show up this year again.
According to baseballreference.com page on Polonia, he runs the Expos Baseball Academy in Santiago, but obviously the Expos are no longer an active organization. He actually has his own academy now where he trains Dominicans in an efforts to get them signed. Seems to be a well run operation and he offers training for anyone that wants to pay, though the Dominican Baseball Guy is sure he takes on most of his Dominican clients for a percentage of their bonus if and when they sign. Here is a link to his academy website: http://www.luispolonia.com/index.html