This question has been settled with a final result: "Washington Capitals". Trading has finished.
Via http://www.playoffstatus.com/nhl/easternstandings.html --> note they also have forecasted probabilities (the values below were from 8 April).
Washington Capitals: Led by the legendary Alex Ovechkin, who is eyeing the NHL's all-time leading goal scorer record, the Capitals blend veteran experience with the drive for another playoff run. Their schedule includes critical matchups against direct competitors. (10%) Pittsburgh Penguins: Sidney Crosby's exceptional season highlights the Penguins' late surge. With Crosby's leadership and a streak of recent wins, they are a formidable contender, facing important games against teams like the Redwings and Islanders. (13%) Detroit Red Wings: A young, storied team eyeing their first playoff appearance since 2016. With the leadership of Patrick Kane and Dylan Larkin, and additional games in hand, they have a significant opportunity to clinch a spot. (58%) New York Islanders: Currently in a playoff position, they risk falling to the wildcard spot amidst a challenging schedule. Their performance against top teams in their remaining games will be crucial to their playoff hopes. (13%)
Links for each team's schedule below: