So people could "Power Level" in Ironman and then on purpose, get killed to be then moved to the normal Open game with all their stuff.
A valid concern. But frankly I wouldn't have a problem with that, if it would mean that players would be more incentivized to try out Ironman. Some might end up liking it and playing it in the long run.
Not allowing players to be able to carry their save / assets into regular Open upon death would certainly represent a deterrent. For example I used to play a lot of Path of Exile Hardcore back in the day, even if I sucked at it. Without the ability to find my character back in Standard I would have probably never tried Hardcore in that game.
Besides, Open is already bonkers borked when it comes to player asset balance. We have moguls who have been playing for 4 years, we have billionaires who have been using every money making scheme in the book unchecked, we have grandfathered god-rolled items which can never be achieved again, and for a good while we had exploited RNGineered god-rolled mods running around popping people left and right. Also, if we are to learn by example: PoE is dumping each temp league every couple of months back in Standard, and Standard is still going strong and being played in, last I checked.
I wouldn't worry about a new player learning the ropes and boosting his assets in the hardest mode available, only so that he could face the big bois in current Open.
Existing players wouldn't be able to fast track, or at least it wouldn't do them any good, in order to join Ironman they would need to reset their account anyway (remember, we're not asking for extra commander slots, just Ironman mode).
