@Riot What's the plan with the Jungle item changes on the PBE?

2/6 PBE Update
VERY WIP! ] [STATUS: PBE is currently offline.] The PBE has been updated! As we start the 8.4 PBE cycle, today's patch includes Dragon Master Swain and a new skin for Jarvan IV! Continue reading for more information!
All of the different smite upgrades have been replaced with this one item that combines the Blue Smite with the warding upgrade. There's a post about the AP items overhaul, but I haven't been able to find any explanation for this change even though it looks like a big deal.
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