Most of the Menards train stock comes in one shipment coinciding with the merchandising of the seasonal toy department in early October. However, certain new releases have been added to the shelf mid-season in the past.
At my local store, the Halloween department shares space with the Christmas seasonal department. Again, the trains share space with the seasonal toy department. So one has no bearing on the other.
Also, as for the timing of the Halloween department, retailers are well aware of effective retail strategies on when to start the sale seasons. Halloween seasonal retailers that rent strip mall space usually start Sept. 1. Hobby Lobby has had their fall line out since July. Why? Because that’s when people start buying. By early to mid-October, Menards will be sold out of all the popular merchandise, with the Halloween seasonal section taken over almost completely by Christmas merchandise.
I expect to see the Christmas trees rise close to Oct. 1.