Who will be Lionblaze's and Hollyleaf's true loves?

No one knows for sure who Lionblaze and Hollyleaf's will mate with, although there are several possibilities.

One theory about Lionblaze's mate is that he will come back to Heathertail, although this does not seem likely due to the fact that they seem to be mortal enemies, but anything is possible. There are several other possibilites including: Cinderheart, Hazeltail, and Icecloud (Icepaw).

Considering Hollyleaf's mate we must also remember that whether or not Hollyleaf will have a mate depends on whether she is really dead or not. (See related questions for information on this) Even if she is still alive, it is not known whether she will take a mate or not. And although it has been rumored that she may mate with Sol, we can not know anything for sure until the next series has been written.

Personally, after reading Fading Echos, it seems that Lionblaze loves Cinderheart but I want it to be HAZELTAILXLIONBLAZE

Gosh why hazeltail! she has the blandest personality of practically every cat in ThunderClan. In Fading Echoes, it is hinted Lionblaze likes Cinderheart, but is currently unknown if she likes him back.

Yeah that's what I thought. Though I love Heathertail and Lionblaze I think that he will mate with Cinderheart. I don't think that he should mate with Hazeltail OR Icecloud because there has always been some kind of spark between Lionblaze and Cinderheart.