well i will love to see lucy and natsu together... but i really think that it's logical for natsu and lisanna to be together..... based on the that relationship that they had in the past...... as for lucy maybe loki could be the guy for her lol.... thats of course if it's possible for a celestrial spirit to date a mage. . . . XD
Well Natsu and Lisanna don't really have all that ... In the manga they more or less just have one omake which in the anime is repeated a lot and nothing less and even in that one omake Lisanna said she was kidding ... Actually Erza and Wendy are MUCH closer to Natsu than her
Licy and Natsu on the other hand are more or less confirmed by hiro (all the hints: the hugs, the boob grabbing, natsu uprooting a tree for her, he sleeping in her bed...), all the other omake are more or less NaLu oneshots, he specially made a pic of them hugging in the movie as a promo and he has a pic of them getting married on his twitter ... Its beyond obvious at this point
There is also the fact that Haru and Elie are more or less the same as Lucy and Natsu and they ended up married, they had very similar moments with the huggs and one shotting into anothers boobs etc
And last but not leadt a vast majority of fans prefer NaLu (as does Hiro) and Hiro always does what pleases the fans! Also did you read ch. 331 (the one in which by shonen standards they practically had *** in) and the last weeks chapter?