As the title says...
I wouldn't mind a remastered version of the Sims 2 Castaway.
With many older games being remastered (such as my childhood game when very young, Spongebob: The Battle for Bikini Bottom, or Destroy All Humans!), I feel like Maxis should start releasing some remastered editions of their older games for the nostalgia - especially since it is difficult, but not impossible, to run older games on newer systems.
More successful older games that can be remade:
1. The Urbz: Sims In The City
2. The Sims Medieval
3. The Sims 2 Castaway
4. SimCity 4
Your Justine Keaton Enthusiast.