I've followed this player for a long time. He has had some significant life adversity going back to his formative years in Europe. I'll see if I can dig anything up. But he is mentally tough and resilient which are a vital, under valued and unseen attributes of successful goaltenders (see Jack Campbell for the opposite). Certainly dealing with the death of his battery mate goaltender and friend who apparently sacrificed himself to save Elvis and his family is significant real life trauma.
Personally I don't mind a fiery, competitive personality. The Wilson thing is a one-off and Merzlikens didn't shy away from confronting one of the league's most feared players. A lot of players wilt from that confrontation. He took it head on. Unfortunate it cost his team but the incident is overstated. This guy is forged tough through his life and upbringing.
Last year was a statistical outlier for Merzlikens. He wasn't good but he was also recovering mentally from a life altering fatal event. He acknowledged his poor season; recommitted to staying in C-Bus off-season instead of competing for Latvia (not Belarus) at World Championship (which he took major criticism from its citizens); and has successfully reset his quality game.
Oil are stuck with an unmovable Campbell contract so it's hard to imagine how an acquisition could work without franchise crushing compensation with precious few assets Edmonton might dole out. As I've posted previously, Kekelainen's play is to retain salary with a team that can afford giving an asset(s) without having to pitch an absolute toxic contract like Campbell's back.
EDIT: Here's one article with some context
Charismatic Elvis Merzlikins is a fast-driving Blue Jackets prospect on the road to maturity
He’s overcome the disappearance and death of his father, Vjaceslav. He’s endured years of emotional and financial hardship. He’s escaped the temptations and dangers of the mean streets in Riga, Latvia, that claimed the lives of childhood friends. He’s worked through bouts of immaturity with the understanding he’s not a finished product.
Merzlikins has emerged from all of it — without a scratch. He’s as unique as Lugano, a city on the Italian border that has both snowfall and palm trees.
“Elvis back in the day was a black sheep,” his mother said. “All people didn’t watch him seriously because they didn’t believe that he can be something one day. Just me, my older son and our grandma we knew it and we believe that Elvis (would) be what he is now.”