Aye I remember that, although I don't remember any news on it being flushed down the drain.
What I think would be a good next extension would be going for the old line in Scotswood and Elswick, and reopening the old bridge across to Blaydon, and retunr via MetroCentre and Dunston. Would be nice to bore through from St James along the west end but of course would be cost-prohibitive.
Airport - Ponteland has been proposed many times, although unsure how hard this would be to do. Most of the old line is still extant.
Using the ECML to Killingworth has also been on the agenda since day one but would mean a new station and new lines.
I wish they had kept the Riverside branch, imagine if that was still going these days.
--- old post above --- --- new post below ---
Just had a look at the map in more detail. From what I remember there are more new lines on that one than the one that came out with the report. Never seen half of the news lines on there, like Rake Lane and Westoe. Now if they had the funding for that, that would be great.