The following year, Slayer was released. It was made possible by an even smaller development team than the one we have today. While I can understand that it's harder to OSRS Gold release updates now that include textures, and all that, more updates or quests would definitely be appreciated.
Although I may be wrong, it appears that Jagex gives more thought to Treasure Hunter/Solomon updates than regular game updates. A bunch of items that have been made available might have been integrated into a new quest or skill expansion. For instance, portable forges and ranges.
Quality over quantity, I suppose? It's not true. This could mean that 2005 was not great in quality or that today is great. These quests were completed this year: "One of a Kind" - OK. It should be classified as Master instead of Grandmaster. It's also way too quick. The zones are comprised of recycled images (the celestial dragon dungeon area is identical to the one in the Brimhaven-metal Dragon area).
I also think RS would be a vastly different mobile game than most in terms of mechanics and due to the fact that it was created online. Online players will be more efficient however that could be my narrow view. I cannot see myself taking risks with my equipment for bossing or PVPing.
There's another "wait 10 seconds upon logout" thing that to Buy RuneScape Gold me feels weird on mobile. Mobile games can be accessed from most phones and you are able to return later. If you're fighting a monster you need to wait until it is defeated, then get out of the aggro area, then wait for 10 seconds before you quit. While it's an inconvenience however, it makes PVM/PVP gameplay on mobile a lot more difficult than other games on mobile. I'm not certain how new players would react.