Oh, I'm aware that his current status is somewhere between mediocre and dire, but that doesn't destroy what he's built for himself in the years between 1987 and now. His success stalled majorly after Maladjusted - to the point where even the diehards were thinking he was done for- but he resisted the temptation to crawl back to Johnny then, and I'm certain he'll resist it now. Nobody expected "Quarry", just like they didn't expect Your Arsenal after the dud that was Kill Uncle, but it bolted out of nowhere with such ferocity that people wondered why they'd ever given up on him. I'm hoping and praying that there is life in the old dog yet, because I love Morrissey enormously despite my criticism. I just don't think a Marr reunion holds all the answers.
If anything, linking up with Marr would be the ultimate humiliation; it would be a symbol of defeat. It's saying, "Everything I've been through in the past 25 years - highs, lows, court cases, the Finsbury Park fiasco, exile to LA, comeback...is ultimately worthless, so I'll go right back where I started and get Johnny to kickstart my career". Morrissey has faced all the major bullshit in his career by himself, and when the glory has come to him, he took that on his own as well. He doesn't deserve to have other people riding on his name.
You said that Marr's situation isn't "quite as bleak" as Morrissey's, and it hit a nerve with me so allow me a little rant. Morrissey has had a solo career - some great albums, some poor, some mediocre, but they're there. Marr? In the last 25 years the man has done virtually nothing except sit in a studio getting stoned and adding a bit of ornamental flair to Matt Johnson and Bernard Sumner's abysmal lyrics. His solo album was shameful; his band-hopping just embarrassing. I could name Maladjusted B-sides that are leagues above the very best of his post-Smiths output, and yet this drugged-up, back-stabbing people-pleaser gets the kind of critical respect that Morrissey could only dream of. Why? Because he wrote wonderful songs decades ago and has been trading on it ever since? The reason Morrissey gets criticised heavily by fans (me included), is because we have come to expect better from him than what we are currently seeing. We know he is still capable of greatness. The reason that none of Johnny's "solo" projects are criticised is because nobody took them seriously for a second. Morrissey's career might be stalling, it might even be over, but it would be a sad day when he felt the need to go back to that two-faced has-been.