At some point, Newcastle United will need a new striker. Quite how pressing an issue that is, however, remains to be seen. Indeed, the signing of a new forward is said to be something of a priority at Newcastle heading into the January transfer window, having switched focus from their pursuit of Marc Guehi. Callum Wilson, of course, cannot be relied upon to stay fit and seems destined to leave upon the expiration of his contract this summer anyway. Few would doubt Alexander Isak’s supreme quality (current patchy period aside) but there have recently been noises about him potentially looking to…