G'day Hanna,

No, it won't.  The number in the tent name refers to the width of the tent itself.  The Turbo 300 series is only around 3m wide, whereas the 380 is around 3.8m wide.  Unfortunately, the Canvas Deluxe Front Panels are not compatible with the Turbo 380.
You can, however, get Lite front panels here.

G'day Mark,

The current add on panels are compatible with all Black Wolf Turbo Tents that have a 3 pole annex.
Hope that helps.

G'day Mike,

It's just the 1 front panel mate but if you wanted to create a fully enclosed space, you could grab a couple of the Deluxe Canvas Side Panels as well..? Cheers :)

G'day Gary,

Thanks for touching base, unfortunately, there is no front wall available for the older 2 pole style awnings. Blackwolf only released the front and side panels when they released the 3 pole front awning, so sorry but there won't be anything available to suit your needs unless you get something custom made.

G'day Joel,

You should have no issues using your Black Wolf Turbo Canvas Deluxe Front Panels on older models of the Turbo Tents as long as they're 3 pole models. It also does come with 2 doors (mesh & canvas) and a gusset on the panel as well. 

G'day David,

Unfortunately, Black Wolf has only released Turbo Canvas Deluxe Front Panels for the 240 and 300 models and neither of these sizes will fit your 210 model.