Executives at Avon Products Inc. predicted its new line of makeup and skin care products, which begin selling in the second half of next year at Sears, Roebuck & Co. and J.C. Penney Co. stores, will generate $200 million to $300 million in revenues by 2005.At the same time, however, the company said it remains committed to the Avon lady and will invest $100 million in its direct-sales team.The new product line, called Becoming, ranging from cosmetics and creams to accessories and vitamins, ...