Sethi also confirmed that both PCB and the West Indies Cricket Board have signed a mutual agreement to play each other in Pakistan and in United States of America on regular basis for the next five years. The series in America will be a tri-nation affair which will include Pakistan, West Indies and a third country.
He further elaborated that the PCB and the CWI have mutually agreed to play series in Pakistan and the USA.
The Caribbean team will play the matches in Pakistan and the USA.
Windies are set to play a three-match Twenty20 series in Pakistan in March and April next year, it was announced on Saturday.
The worldwide cricket came back to Pakistan after the series against World XI and a one-off match against Sri Lanka and now, the development goes ahead with the next series against West Indies in March 2018.
"We are in talks and will soon finalise the third team for the USA leg", he said while adding that this bilateral arrangements between PCB and West Indies is outside the Future Tours Programme (FTP). In what will also clear any doubts about the tour happening or not is a five-year deal that the two cricket boards have signed.
Global cricket was suspended in Pakistan after terrorist attacks on the Sri Lankan team bus in Lahore in 2009, which killed eight people and injured several players.
"We are in talks and will soon finalise the third team for the U.S. leg".
Pakistan have already hosted the Pakistan Super League final in March followed by a tour by the World Eleven in September and most recently, Sri Lanka played a lone T20 in Lahore on October 29.
Sethi also clarified the fact that both sides would play T20I series against one another, each year for the next five years.