But as the handhelds advanced, the difference between the two in terms of the experiences they offer have decreased more & more. We're now to the point where we have full console games on handhelds (see Xenoblade & DKCR). We also have major engines such as UE4 that can be supported by mobile devices. And it wouldn't be as stupid of a business decision as you'd think, as you'd only have to worry about selling one SKU for games & can focus on either providing DLC for that game or adding more variety to the line-up.They're not going to make the exact same game that you buy once run on both. This may happen, but it'll be the exception, not the norm. Handheld and console user experiences are two completely different things.
Console = Big game, sit down for a while
Handheld = Smaller game, played in bite size chunks
You can see this again and again in all of their handheld and console releases.
This is also an incredibly stupid business decision as well.
You really have no idea what you're talking about, and like to use large technical jargon to make it sound like you do. I really don't know how "make software assets more transferable" translates to "make the exact same game for both" for you.