I like everything on the list. Here's a few of my own I'd like to see.
1. A more intuitive road tool with improved snapping and better spacing.
2. Mod tools! Let's face it, the fans were always better at creating SC content than Maxis. Maybe coz it's done for love and not money? (no offense Maxis, I still love you)
3. Fix Megatowers please.
4. More future parks and other plopables. The current selection is shamefully limited.
5. Futurization of existing plopables such as police stations, schools etc.
6. Round parks! I mean seriously, we can perfect circle roads but only fill them with square parks? Make some round ones please.
7. Most important, I'd like to see ti released before Christmas.