Final post that I'm going to say and I will not come back here again on this site. Don't ask okay.
Final ideas I will say for the fourth patch:
The rail things from Super Mario Bros. (ones that goes up or down depending on what rail you step on), the beanstalk block from New Super Mario Bros. (you can add a beanstalk in a block and then hit it to make a beanstalk pop out and makes it go up, but the block won't disappear, and you can climb it as well to go to higher levels of a hub or a level), a ridable cloud from New Super Mario Bros. (jump on a lakitu and then a cloud appears after hitting him, then you can ride the cloud for about like 20-30 seconds. Don't know if you want to implement that), and for the last idea; pipes that raises up or down from New Super Mario Bros. (don't know if that's possible, but ok.)
-5 Silver Stars (maybe you could replace the 5 hidden space in the original which spawns a star)
-For 2.5D levels:
+ ? Item blocks / Breakable Blocks (Set Bparam on Toads Tool to define what's inside
-Time Limit Spawn (Appears a message on top of a screen; after being read, countdowns "x" time)
-Daredevil Mode (reference: In Super Mario Galaxy, there was a few missions which you had to repeat in a single health for boost challenge) (So -> An object in Super Mario 64 which spawns a message at the top of the screen maybe saying: "Now it's time for a real challenge" and your health gets down to one) (Not the best idea for water levels though)
Alright, so these are more like simple stage gimmicks than actual objects. Although, tell me, what do you think?
Okay so you are looking for some platform ideas. Okay how about this:
+Moving spikes (4x4 (16) spikes goes up and down; basically it gets out of the ground for "x" time and goes back to the ground (repeats).
+(Not a platform idea but): Enemy Generator or Object Generator (ideal for Boss fights)
+Rising lava (very useful for fire and volcanic level) (set the "x" distance and the "y" distance on toads toal)
+Yoshi's Island platforms: http://www.bing.com/images/search?q=yoshi+island+platfroms+&view=detail&id=D06478E6CBA9D6EEA8482C1911134080BF72D901&first=17&count=1&FORM=IDFRIR (Basically if you are on the far right of the rotating platforms, then I will direct you to the right side; vice versa for the left side) (I probably didn't explained it right but go check some Yoshi's island footage and you might get what I am trying to say).
+Yoshi's Island again: http://t1.gstatic.com/images?q=tbn:ANd9GcSYwtUkOGZMSpJyUZP1kh_yg2E792LelgSlHo6UVaPAmmAtKIrTZfsdWw (Hit the switch -> Semi Spiked Platform rotates 180 degrees so that the player can go freely on the said platform without hurting himself.