I'm not really sure I understand why Old Man Logan is a thing. The original series by Mark Millar and Steve McNiven is one of the most miserable and misanthropic comics you'll ever be unfortunate enough to read, and injecting that streak of vinegar into the Marvel Universe doesn't feel like much of a win. Besides, the character's main distinction from the usual Wolverine is that his hair is grey. Logan was already a grumpy old dude.
Oh, and this Logan is alive. That's a pretty good distinction. This refugee from another timeline in the newly rebooted Marvel Universe allows Marvel to keep telling new Wolverine tales without hurriedly backtracking the death of the previous Wolverine, who got turned into a hood ornament not so very long ago. It's a deft bit of shuffling to create the illusion of permanent change, but if the result is that Laura Kinney gets to be Wolverine for a little bit, I'm in favor of it. Plus, this new Old Man Logan series comes from Jeff Lemire and Andrea Sorrentino, and that's a solid creative team. Maybe they can make something great from this wet wodge of unhappiness?