Yes. One solution is to take is a graduated approach from the business side. You could begin your business by ensuring that you only sell goods or services in one specific class, and then on your trademark registration application, you could specify that one class. However, it will be incumbent upon you to police your business to ensure that only those goods/services are being sold. Several years down the road, when you want to expand your business and offer goods or services in another class (or classes), you could file another trademark application specifying the additional class or classes.
There is a risk with this approach, however. The risk is that someone else could register a mark that is the same or similar to your mark, but in one of the classes where you have not yet registered. Thus, not only could you could be foreclosed from using your mark to identify goods/services from that class, but this other party could potentially bring a legal action against you if you did use your mark to identify goods/services in that class.
There is a risk with this approach, however. The risk is that someone else could register a mark that is the same or similar to your mark, but in one of the classes where you have not yet registered. Thus, not only could you could be foreclosed from using your mark to identify goods/services from that class, but this other party could potentially bring a legal action against you if you did use your mark to identify goods/services in that class.