Has to be complete and utter bullshit because there hasn't really come in more competition.
Fabinho for the #6, basically replacing Can who was ahead of Wijnaldum for that position most of the time anyway. That's competition for Henderson. Status quo.
At the #8's we have Keita, Chamberlain (who is still out injured for 4 months or something?), an aging and injury prone Lallana and Milner who won't be around for much longer and surely isn't ahead of Wijnaldum in the pecking order.
So basically it's Keita, Chamberlain and Wijnaldum long term, three players for two positions. That's the same amount of competition that he faced this season and I think he played the most minutes of all our midfielders? It's perfectly possible he'll play a bit less, but given the amount of games we're likely to play, that's not even a bad thing, keeping him fresh for the big games in which he excels.
Just like PM, I think he'll be instrumental this season playing in a number of roles and positions. Klopp loves him.