As someone who was forced to go casual due to relocation (resulting in differences between working weeks and time zones), this question (in general) is something that I have to consider quite a bit given that any time spent playing the game detracts from wider responsibilities/desires.
I have to say BfA overall, for me, has been hit and miss. There have been pockets of elements that I consider truly engaging... and then other element s which simply have not appealed.
An example of the less appealing being the Mechagon and Nazjatar rep grinds, which no doubt I shall still be doing for some time to come.
As suggested previously, unless the next patch provides something truly gripping or enjoyably repeatable, is probably also use this time to enjoy classic.