I have a feeling since Shikamaru is in his puppy love/crush stage, it may be Sakura who gets hit by the feelings gun first. But then again it's possible Shikamaru has at least thought of Sakura in a different light by then? Who knows, it's hard to say this early on.

I do think Ino might like Shikamaru in a 'she wants what she can't have' sort of manner but I don't think Ino's crush on Shikamaru further down the line would be founded in much reality. As you said, they would both want to do different things. Shikamaru does prefer a more lax setting where Ino is more into dancing and having a good time. And soon she'll find someone to keep up in Naruto. XD

Btw reddit gave me another thing to balk at...people claim that Hermione and Ron's arguing was totally harmless and not verbal abuse but instead, more like flirting/foreplay. Urgh. How delusional can some people be??? I'm so baffled.