Didn't found any other thread yet about the Worlds.
The Belgian team will be announced tomorrow so today last day for many riders to prove themselves.
Seems like 5 guys are certain already:
Van Aert - leader so makes sense.
Stuyven - Won a monument this year and as is known grown up a couple 100 metres from the finish line.
Declerq - to work at the front of the peloton the first 150 kms. Makes sense.
Lampaert - makes sense for the TT but not at all for the road race. I do not understand this at all.
Benoot - apparently because Vanthourenhout trusts him completely and sees him as a sort of DS in the race. Not like his tactical nous has helped him win a lot in the past.
That leaves for three more spots many big names:
Van Avermaet - has seemingly given up on participating. Such a shame. He was still very good in the spring season
Evenepoel - has shown he is very good against PCT level but not at all at WT level. Not good at the olympics. The course is very technical so i would not take him. He has also already said that Lampaert will do the TT over him so if he wants to do the TT he needs to win the Euros to get a start ticket.
Gilbert - obviously on the way down. Last 3 years he knows himself only races he can still be competitive in are races over 250kms.
Van Hooydonck - no idea why he gets a chance. Only reason is because he's a teammate of Van Aert but well his team obviously sucks when they need to help him.
Naesen - Knows he has not shown enough in the later part of the season but I seem to remember him being very strong in E3. I expect fireworks from him today.
Campenaerts - his reconversion has gone surprisingly well with a Giro stage win and now a very impressive Benelux tour. There are doubts about his skills in a 250km race.
De Bondt - former Belgian champion and wants to race but unfortunately not shown enough and not good enough.
Merlier - fastest (Belgian) sprinter. Not a classics rider. Maybe he gets selected to hinder Van Der Poel in the first corner

Vermeersch - Very good classics season. Has seemingly always been on the fringe of Vanthourenhout's selections in CX and has always just made the team (just like Merlier)
Teuns - a farce that he was not at the olympics. Was obviously very good at the Tour but has shown litte since. Likely to get selected as make up for not being at the Olympics
Wellens - Decent season but missing those 2 or 3 impressive victories he's always good for.
Hermans - his last couple months have been about just as impressive as Evenpoels but a lot less mediatised. Cannot even get selected for big races in his own team so doubt they will take him.
Devenyns - does not want to ride because he does not want to work against Alaphilippe. No Andy Schleck to convince him to do otherwise

Philipsen - topsprinter but not as good as Merlier or Van Aert and no classics results so far.
Vanmarcke - hopes to be selected but did not show enough in the Vuelta after being involved in a lot of crashes.
Theuns - not good enough.
Van der Sande - consistently decent. Future teammate of Van Aert. Would not surprise me if he gets selected.
Rickaert - good leadout with decent results for himself in one day races but questions about the distance.
I would take Van Aert, Stuyven, Declerq, Naesen, Vermeersch, Wellens, Teuns and Vanmarcke.