According to the article I culled up last night, a mere 3 hours old at the time, AC/DC's statement is they'll keep making music. Normally I'd want to hear about all this from Eddie Trunk and That Metal Show, but they just ended their season again, so sad.
The odd thing is keeping quiet on the reasoning front, but like Slayer, I think AC/DC might continue in a similar fashion, as they did before in 1980 with Brian Johnson, but I really think firstly, they'll get a studio recording I think was already in the works....released.
Just as an aside about Malcolm, Dave Mustaine of Megadeth had an accidental hand injury and it seemed pretty grave for his guitar playing to continue at all, and he sold off all his guitars at the time. I remember it well, Earl Root was still with us, and we talked about buying them! (dreaming of course) but he recovered, and we pray the same for Malcolm. He's taking an extended leave or hiatus if you will. Doesn't sound like he's on death's door from what I read so far.