DOTA 2 should also have DotA related scenarios. At the early days of this website IceFrog mentioned that he would include scenarios like Pudge Wars. I hope, after much increasing popularity of DOTA 2 and more focus on the main gameplay itself, Valve doesn't forget this point!
It would really be cool and a fun break away from the seriousness of an actually DOTA match.
IceFrog and Valve should bring DotA LoD into DOTA 2. It's a version of DotA where we can pick our own skills and heroes. Many who haven't played it says it's lame and overpowered, but trust me you'd have to be very experienced in various hero stats and skills to create the ultimate skill combo with the best hero available. Don't worry about people spending hours figuring out the best skills and hero to use and all use the same skills because we usually play -md or -sd, where in -sd every player only have choices from a few heroes which the rest do not have while in -md every corresponding player in the different teams have quite a number of the same heroes to choose from, but every pair have different heroes.
DotA Imba can be considered, but I don't see much difference in the level of seriousness and fun compared to an actually DOTA match. Also, I liked the idea of giving players who keep dying in a row dying streaks. They are hilarious and should be a good addition to fun scenarios.
Pudge Wars, Shadowraze Wars, etc. should be included too, but I'd like to see something original created by Valve for these scenarios.
The deathmatch mode of DotA should also be a seperate scenario in DOTA 2, where there is a different map layout more ideal for never-ending ganks, team clashes, chasing, escaping, juking, counter-killing and RAMPAGING! Mostly making the arena smaller than the actual arena.
Any comments, dislikes, or more suggestions guys?