Who knows...a Harrier could look cool with a tiger's mouth painted on it.
Unfortunately, this is another example of Dail Mail yellow journalism. They have forgotten facts in their unending search for sensationalism. There was never any intention to use Harriers on the new carriers. The plane has a formidable reputation (justifiably) but the simple fact is they are very old now and functionally obsolete. The intention was always to use F-35’s (which arent ready yet) on the new carriers (which arent built yet). None of this is going to happen for another 2-3 years.