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diff --git a/HighLevelGoals.md b/HighLevelGoals.md
index cbbf806f..dc0d543e 100644
--- a/HighLevelGoals.md
+++ b/HighLevelGoals.md
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 # WebAssembly High-Level Goals
 
-1. Define a portable, size- and load-time-efficient binary format to serve as a web compilation target.
-2. Define a human-editable text format that is isomorphic and convertible to/from the binary format.
-3. Design v.1 to allow an effective (load-time and performance) [polyfill](https://github.com/WebAssembly/polyfill) via client-side compilation to [asm.js](http://asmjs.org).
-4. Design v.1 as a Minimum Viable Product: basically what you can do with [asm.js](http://asmjs.org).
-5. Design to integrate well with the existing web platform:
+1. Define a portable, size- and load-time-efficient binary format to serve as a
+   web compilation target which can be compiled to execute at native speed and
+   take full advantage of a CPU's capabilities.
+2. Define a human-editable text format that is isomorphic and convertible
+   to/from the binary format.
+3. Design to serve as a compilation target for a growing set of source languages
+   over time, starting with C/C++.
+4. Design to maintain the versionless, feature-testing and backwards-compatible
+   evolution story of the web; engines should not need multiple, versioned
+   decoders.
+5. Design and implement incrementally: the initial version will be a Minimum
+   Viable Product by being an effective [polyfill][] via client-side compilation
+   to [asm.js][], with a feature set similar to [asm.js][]'s current
+   features. Subsequent versions will be more [featureful][].
+6. Design to integrate well with the existing web platform:
     * execute in the same semantic universe as JavaScript;
     * allow synchronous calls to and from JavaScript;
-    * enforce the same-origin security policy; and 
-    * access browser functionality through the same Web APIs that are accessible to JavaScript.
-6. Design to maintain the versionless, feature-testing and backwards-compatible evolution story 
-   of the web; engines should not need multiple, versioned decoders.
+    * enforce the same-origin and permissions security policies; and
+    * access browser functionality through the same Web APIs that are accessible
+      to JavaScript.
 7. Design to allow execution in non-browser environments.
 
-
+  [polyfill]: https://github.com/WebAssembly/polyfill
+  [asm.js]: http://asmjs.org
+  [featureful]: https://github.com/WebAssembly/spec/blob/master/UpcomingFeatures.md
diff --git a/UpcomingFeatures.md b/UpcomingFeatures.md
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+# Upcoming Features
+
+Subsequent versions will expose further features which expand upon the
+[high-level goals][], prioritized based on developer feedback, such as:
+
+* Concurrency and parallelism through threads and SIMD.
+* Dynamic loading.
+* Platform-independent Just-in-Time compilation, potentially through dynamic
+  loading.
+* Finer-grained control on memory management.
+* Zero-cost exception handling.
+* Stack unwinding.
+* Garbage collection.
+* Signal handling.
+* Proper tail-calls.
+* Irreducible control flow.
+* Extra math which may not work the same on all platforms:
+  - Fused multiply-add.
+  - Reciprocal square-root approximate.
+  - 16-bit floating-point values.
+
+[high-level goals]: https://github.com/WebAssembly/spec/blob/master/HighLevelGoals.md