Gulberg is better than BT-8. BT is sinking now a days. rates are not stable.
Best Block in gulberg are B, I & E block.
Yes its true. Gulberg is working on purchasing new land / extension of existing project. It will take atleat 6months to a year to launch new map of gulberg.
Attendance of buyer and purchaser is must for transfer of plot. May be power of attorney works in your case.
Bridge is completed for the last 6 months but not yet inaugurated. it is being intentionally delayed due to some land issues. And tractor trolleys are working in Gulberg greens and only in block B. rest is calm and quite.
Rate differ from plot to plot and block to block. Best blocks are B, I & E and some areas of F, H & I.
The cheapest block of gulberg is K block. rates of 30x60 size plot (7-8 marla) varies from 16 lakh to 30 lakh in gulberg residencia.