Clearly the Bruins are looking for a top 6 winger. They have been rumored to be interested in Tippet since the trade deadline. The Bruins still talking to Arvidsson isn't surprising. Alluding to Dom's tweet earlier today, maybe the prices are too high to make that kind of acquisition (2nd line forward), i.e. teams want the Bruins' best prospects, Hagens/Letourneau. This is the problem with not having a deep prospect pool. Hagens/Letourneau + 1sts should be used to bring in an upper tier talent like a Thomas for example but shouldn't be used for 2nd liners or lower tier first liners. The question is, do the Bruins offer Arvidsson term? With a weak free agent pool, I wouldn't be surprised if Arvidsson cashes in on what will most likely be his last deal.
It's obvious Sturm likes Peeke, much more so that it doesn't seem like he trusts Lohrei and Jokiharju. That just leaves McAvoy at RD and maybe one of Aspirot/Brunet playing the right side, which would be my preferred third pairing next season. With McIlvane under the fold, who will most likely implement Sturm's defensive system, maybe Sturm feels like Peeke could be a fit.
Regardless, it seems like the Bruins will at least try to add a defenseman in free agency. Hopefully not Rasmus Andersson, but I wouldn't be surprised if they sign a bottom-pairing/depth defenseman.