I swear to God Im not a robot mate.
On a srs note tho, many of our youngsters have shined at first but then faded on their loan spells, but if you had to bet on somebody who won't [fade], that would be Jack.
Btw, transfermarkt states that his loan ends in June 2018. They can't be right in this case can they?
Don't ever rely on transfermarkt dates, but no it's not right.