Pelech had three goals, 16 assists, and a plus-seven rating in his first full NHL season.
Nelson finished the 2017-18 season by getting at least one point in four of his last six games.
De Haan (shoulder) has confirmed that he will be ready for next season's training camp, Brian Compton of NHL.com reports.
Kulemin (shoulder) told reporters he would have been ready for the playoffs if the Islanders had qualified, Andrew Gross of Newsday reports.
Quine stated Sunday that he is fully healthy after missing the last 28 games of the season due to "nagging injuries", Andrew Gross of Newsday reports.
Fritz was reassigned to AHL Bridgeport on Sunday, Andrew Gross of Newsday reports.
Pulock scored a power-play goal and added an assist during Saturday's 4-3 overtime win against Detroit.
Barzal recorded two assists -- one on the power play -- during Saturday's 4-3 overtime win against the Red Wings.
Fritz (illness) is active for Saturday's game against the Red Wings.
Quenneville signed a three-year, entry-level contract with the Islanders on Friday, Arthur Staple of The Athletic New York reports.
Fritz will not play in Thursday's game against the Rangers due to illness.
Tavares scored twice -- once on the power play -- during Tuesday's 5-4 win over Philadelphia.
Eberle recorded two assists during Tuesday's 5-4 win over Philadelphia.
Barzal scored two goals and recorded a power-play assist during Tuesday's 5-4 win over Philadelphia.
Beauvillier recorded a goal, two assists and seven shots during Tuesday's 5-4 win over Philadelphia.
Gibson was returned to AHL Bridgeport on Tuesday.
Clutterbuck (face) didn't practice with the Islanders on Monday, Newsday reports.
Cizikas (upper body) didn't practice with the Islanders on Monday, Newsday reports.
Bailey (upper body) practiced with the Islanders on Monday, Newsday reports.
Wagner has failed to register a goal or assist since being acquired by the Islanders at the trade deadline.
Gibson allowed five goals on 32 shots in a 5-4 loss to the Maple Leafs on Friday.
Ho-Sang didn't hold back about his unhappiness with the organization in an interview Thursday, Newsday reports.
Gibson will start in goal Friday evening against the visiting Maple Leafs.
Quine (ankle) won't return until Saturday at the earliest, Andrew Gross of Newsday reports.
Leddy (undisclosed) will be active for Friday's home tilt against the Maple Leafs, Andrew Gross of Newsday reports.