Offer both a higher order component and a component for lazily loading modules.

LazilyLoad.js

import React from 'react';

const toPromise = (load) => (new Promise((resolve) => (
  load(resolve)
)));

class LazilyLoad extends React.Component {

  constructor() {
    super(...arguments);
    this.state = {
      isLoaded: false
    };
  }

  componentWillMount() {
    this.load(this.props);
  }

  componentWillReceiveProps(next) {
    this.load(next);
  }

  load(props) {

    this.setState({
      isLoaded: false
    });

    const { modules } = props;
    const keys = Object.keys(modules);

    Promise.all(keys.map((key) => toPromise(modules[key])))
      .then((values) => (keys.reduce((agg, key, index) => {
        agg[key] = values[index];
        return agg;
      }, {})))
      .then((result) => {
        this.setState({ modules: result, isLoaded: true });
      });
  }

  render() {
    if (!this.state.isLoaded) return null;
    return this.props.children(this.state.modules);
  }
}

LazilyLoad.propTypes = {
  children: React.PropTypes.func.isRequired
};

export const LazilyLoadFactory = (Component, modules) => {
  return (props) => (
    <LazilyLoad modules={modules}>
      {(mods) => <Component {...mods} {...props} />}
    </LazilyLoad>
  );
};

export default LazilyLoad;