Over the last few years, a few major franchises have been lucky enough to be resurrected in the form of remasters and reboots and have brought many fans joy. However, there are many more franchises and individual games that have been left behind making them difficult to come by and in danger of being forgotten altogether. Maybe instead of focusing on a single franchise, companies should consider preserving other games through collections and other means.
Gaming companies know there are fan bases out there for their titles, they simply choose the ones that are most well known to churn out over and over for profit. Other companies like Sega and even Nintendo have proven that there's still room for more niche titles and franchises though. Sega's Classic Genesis collection and Nintendo's online library of NES and SNES are enjoyed by many, even if there are some lesser-known games.
Most big companies like Square Enix or Sony don't bother with older IPs because they don't think they'll make the money to justify putting in the time recreating them. However, there is always a fanbase, no matter how niche, for many titles which haven't seen the light of day since their initial release. A great recent example of this is the resurrection of the Secret of Mana series. It didn't do as well as Square Enix's Final Fantasy series, but is still a popular franchise that sold well, especially among long-time fans. All the company had to do was release it in a collection package -- which did fairly well.
Sega's Genesis Classics collection is another great example of preserving classic titles. It includes games like Comix Zone and Ristar that were good games but didn't warrant remakes. However, because they're part of a readily available collection, they can still be experienced today, and it didn't require a ton of resources to put them out there. Nintendo has its online library but is mainly filled with obscure titles because companies like Capcom or Konami don't want to give away IPs. Instead of sitting on them, they should be creating their own mixed collection of games. It would provide preservation, a way for gamers to experience games they missed out on, and companies would still make their profits.
There are plenty of titles this would work for like Mohawk & Headphone Jack, Alex Kidd or Faxanadu. Many smaller developers of these games have been absorbed by the larger ones which still exist, or their IPs are now owned by them. We no longer have the Wii Virtual Store to find these many titles, and most will never get a remake, but there is plenty of room on the market for classic collections to preserve them.