Fiddlesticks and Malzahar

Hello all, this thread is named after these two champs, since they've got some things in common: First, they are rarely seen but not weak. It's the opposite: Their strengths and weaknesses are pretty extreme. Second , both are reliant on "outdated" mechanics. Their kits are reliant on silences (both long lasting) and a suppression. Third, their models are kinda outdated and their particles need an update too. Fourth, both are harbingers of doom(kind of) (kappa). So I'd like to ask how these champs will be handled both by players and by riot. Especially malz can't do without his silence and suppress, so a rework would be needed to remove them. Are they even on the list for updates? Will there be a role for them in future metas? And why aren't they discussed right now?