Surgical Pathology is not really a sub-specialty it is the main part of Anatomic Path. Sure you can do a fellowship in surgical path but there is no board certification. Doing an extra year concentrating on surg path may help in the job market, but not like doing derm, cyto or heme.
Have you spent any time on a path rotation? If not you should try it out. Make sure you like path, some people don't.
Derm especially is a very very hard fellowship to get. Most people who want it don't get it. Cyto and heme are competitive but usually a spot can be found.
The overall answer to your question on the job market really can't be given there are to many individual variables (ie. where do you want a job, where did you get your med school training, where did you get your path training, are you outgoing, do you speak english well, are you board certified, did you complete a fellowship, etc...etc...). But, overall it seems the path market is fine.