The 'surplus' pilots for now is a temporary matter, caused by the withdrawl of three 340s, one each of the 320 and 330, and a number of 767s. The flying will increase in January, when at least three or four Airbus planes return to service.
The 767 fleet will dwindle, and the pilots will be transferred to the Airbus in the new year. During that phase, there would be small periods of 'surplus' pilots, till the new round of resignations kick in (the smart ones that have waited for the salary hike) and the two A321s from Jordan.
GF has been very decent on not forcing leave on its pilots, unlike a lot of other carriers. Be thankful for small mercies.
Whether it is a good or a bad place to stay is subjective - to each his own, and the door is wide open, and there is little gained by writing about known problems in this forum. If one is so upset by the goings-on, then it is better to try the greener pastures, if I may use that term for the deserts around this place!