Historically, he has allowed vacant seats to remain empty until the next regularly scheduled election. (silive.com)
It's possible that he will simply wait until the already scheduled elections this fall, ostensibly to save money for the local boards of elections. (nystateofpolitics.com)
There has been speculation that the governor would opt to have these races run concurrent with the regularly scheduled elections this year, arguably to save cash for local boards of elections. (nystateofpolitics.com)