No,  you are not going to receive anything on GDAX just because they are not going to support forks, they never did.

If you want that piece of shit created in a fork, just go to binance or bitstamp, they are always crediting the holders with the forks if you had that coin before the block in where the fork was submitted.

If you are lucky you will probably get at least $10 from that fork! Yay! Hurra! What a nice deal right?