"The increasing difficulty the writers will face in incorporating Metroids into future games has me a little worried about the series."
Well, since Metroid Fusion the Metroids are part of Samus herself so technically you could say that any game post fusion (storyline wise) which features Samus features Metroids too.
Plus we know that the Galactic Federation was experimenting with Metroids on the space station in Fusion so: 1. We know that the "last" Metroid of Super Metroid is not the last any more and 2. Wanna bet that the Galactic Federation has other secret Metroid labs? One of which might be raided by the Space Pirates perhaps?
"I do not suffer from insanity, I enjoy every minute of it"







