I would of thought it fairly obvious given he's effected the biggest change in British politics and history since the Suez crisis. His achievement is undeniable. Far more deserving than the Remain campaigners like Will Straw who were given gongs despite losing.
My inkling is that Farage will be given a peerage when we've left the EU and it'll be justified for his long service as a President of a grouping in the European Parliament and/or giving Ukip more peers as was pledged by David Cameron. Likely in 2018 or 2019.
If it were up to me i'd actually grant him a
Dukedom. :P