RelativeFutureTense locates the situation in question after a contextually
determined temporal reference point, regardless of the latter's relation to
the moment of utterance. Also called FuturePerfectTense (Comrie 1985:69-71).
(http://purl.org/linguistics/gold/RelativeFuture)
A verb tense that refers to an action or state of being completed in the future.
Translation into English requires the use of the auxiliary verbs will/shall have.
(www.southwestern.edu/~carlg/Latin_Web/glossary.html; http://www.isocat.org/datcat/DC-1292)
A tense of verbs describing an action that will have been performed by a certain time.
In English this is formed with will have or shall have plus the past participle.
(www.wordreference.com/English/definition.asp?en=future+perfect; http://www.isocat.org/datcat/DC-1292)