There's a very old exercise in revision in :
Stephen Pearl Andrews, 'REVISAL OF KANT'S CATEGORIES', The Journal of Speculative Philosophy, Vol. 8, No. 3 (July, 1874), pp. 268-275.
But now, doesn't Kant himself revise the categories in the sense of producing two different sets ? There is the set tabulated in the Transcendental Analytic, Bk I, Section 3, 'On the pure concepts of the categories of the understanding or categories'. (Kant, Critique of Pure Reason, tr. P. Guyer & Allen Wood, Cambridge : CUP, 2000 : 210-18.)
There is also the set expounded in the Schematism of the Transcendental Analytic, Bk II, ch. 1, 'On the Schematism of pure concepts of the understanding'. (Kant, Critique of Pure Reason, tr. P. Guyer & Allen Wood, Cambridge : CUP, 2000 : 271-7.)
To follow up on this, see T. K. Seung, 'Kant's Conception of the Categories
', The Review of Metaphysics, Vol. 43, No. 1 (Sep., 1989), pp. 107-132.