Breakdown of Hlakkar þú til heimsóknarinnar á morgun?
þú
you
á morgun
tomorrow
heimsóknin
the visit
hlakka til
to look forward to
Questions & Answers about Hlakkar þú til heimsóknarinnar á morgun?
Why is heimsóknarinnar so long, and what case is it in?
It is in the genitive case because the preposition til in the phrase hlakka til forces the following noun into the genitive. The base word is the feminine noun heimsókn (visit). Its genitive form is heimsóknar, and adding the definite article -innar gives us heimsóknarinnar (the visit).
I have heard native speakers use a dative subject with this verb. Why is it þú here?
Does til mean "look forward" here?
Not on its own. The preposition til usually means "to" or "towards". But here it is part of the fixed verb phrase hlakka til, which together means "to look forward to". When you learn prepositional verbs, it is best to memorize the verb, its preposition, and the case it takes all at once.
Why does the sentence start with the verb Hlakkar?