Moving to clean and modern HTML5
Nearly universal adoption of modern browsers and other client-side technologies allows to finally move entire codebases of large deployments to modern HTML5.
Leveraging the power of CSS3
CSS3 if finally fully established and accepted. This means powerful UX/UI, modern design and clean code fully accessible on the vast majority of client devices.
JavaScript: exploring new frontiers
JavaScript is fully established as a technology of choice for front-end development. ECMAScript standardization of advanced features enable the power of cloud applications similar to desktop.