Humm, hard to say for any of those series. These are all series that, outside of Pokemon, have been going for more than 20 years.
If you would have phrased Metal Gear as Metal Gear Solid, I would agree immediatly, but being only Metal Gear, it's very unlikely that it will dissapear, not when Kojima has already hinted at the possibility of expanding the series much further beyond Solid Snake's reach.
For this one, i'll have to sit down, as I don't really see any of those series dissapearing anytime soon, not when they are all bannerholders for their respective publishers/developers
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