San Jose should just buy out Vlasic. Sharks can save more than $12m in cap space over the next 4 years, and in the 4 years where they don't get cap savings the buy-out figure is not that bad: $1,687,500m. Not great, but it can be swallowed, especially considering they get far more in cap savings in the previous 4 years.
Waiting another year or two doesn't improve the savings or the penalties that much, so just bite the bullet and do it this summer.
Burns can probably be traded, but would require retention, like OEL. Unlike OEL, he's still productive offensively. He'd probably be better with a quality defensive D-man to back him up. He only has 3 years left on his contract, so that also has value.
Carolina was interested in Klingberg, so they could be one team interested in Burns with some retention, and they have a good stable of prospects too.
I do think Burns has value, but would require $1m-$1,25m of retention, which also isn't horrible considering the cap savings SJ would receive.