It would be great if "TODO's" from python files in a python project were added to the Task List. Really, it would be nice if this worked across all supported languages for a consistent experience.

http://mustache.github.io
https://github.com/jdiamond/Nustache
http://handlebarsjs.com

TODO's in vbhtml files don't show in Task List. Add these to the task list.
See https://stackoverflow.com/questions/44849216/visual-studio-2015-tasklist-vbhtml-todo-comments-dont-show

In my .less files, I'm importing other .less files from a node module by using a ~ prefix (import "~mymodule/file.less"). Intellisense doesn't seem to understand the import, it underlines variables and mixins from that import as "undeclared mixin" / "undeclared variable".

.less IntelliSense should support importing .less files from node_modules by using either the ~moduleName or npm://moduleName prefixes.

These prefixes are supported by the following projects:
https://github.com/less/less-plugin-npm-import
https://github.com/webpack/less-loader

Please add Java compilier, This will help many a novice programmer and can improve your ratings

Eclipse and IntelliJ dominate the Java world, but VS could supplant one or both with the kind of comprehensive Java support offered by each of them.

I think Visual Studio or the .NET framework should start supporting programming languages like:
1. Ruby
2. Scala
3. Haskell
I really love Microsoft for building this awesome product, which supports several programming environments, and it already supports about 20, to name a few! Keep up the good work Microsoft (though!)
:)

VS 2017 should support TypeScript refactoring out of the box or in an easily found extension.

Here are a few ideas:

I'd like to be able to do method/parameter renaming with VS 2017 without having to install R#.

automatically add import statements would also help a lot. TypeScript hero does this well https://marketplace.visualstudio.com/items?itemName=rbbit.typescript-hero

Real time TSLint.

I think it's cool, but too bad that that VS Code tools are better than VS 2017.

I use TypeScript more than C# these days and feel that it deserves VS tools.

For C#, there is such a feature in solution explorer, where you can expand C# files and view the namespaces, classes, methods, properties in a hierarchy view. See a random picture from web showing the structural view.
It will be nice if there is the same thing for PTVS.

I would like to see some support for PowerShell Development natively within Visual Studio, supporting XAML Form Development. Currently have to utilize applications like SAPIEN PowerShell Studio, but it would be nice to see extended support into VS2017 for those of us who do Enterprise Server Side Automation / Development.

Now Kotlin is offical support for android development,and kotlin is open source,can add kotlin language for visual studio?

It would be nice if we could use SASS (other than SCSS) and have those files compiled to CSS on 'Save'. Jade for HTML would be very nice too!

Regarding the growing popularity of open source & free 'SQL programming language' - PostgreSQL, it will be required to support developing PostgreSQL scripts in Visual Studio who use .Net framework extensively for client end purpose, but opt out for Postgres as backend for minimizing license costs. There are VS extensions like NpgSQL, dotConnect etc. but I didn't find developing and saving PostgreSQL scripts in them.

So it would be better if there is an ability in Visual Studio to develop pgsql scripts, execute them against PostgreSQL server and build database packages.

VSC is great, but it's missing support for Symfony(2/3) projects. It would be great if you can add it to finally ditch Netbeans.

i love this lagnuagr idea,, iots realyl goos!

It would be great if python projects had Docker support the way ASP.NET core projects do. Here is the documentation for how asp.net projects support Docker. The integration looks seamless.

For now developers have to either use FXC (which means no Shader Model 6.0+ support) or mess around with command line options. It's not convenient and it'd be great to have the option in preferences.