Bahria sports city karachi v/s bahria lahore sector-f

Seniors,
I got information that bahria town lahore is offering alternate plots in bahria sports city karachi to those who possess fully paid files of sector-f lahore. Please confirm this news and also advise if it is a fair deal? Is the current market value of sports city karachi equals to the investment made in 2013-2015 against sector-f???