Getting checkbox options for a new entry, without having an entry
You can pull the field directly using craft.fields:

{% set myFieldOptions = craft.fields.getFieldbyHandle('myFieldOptions') %}


The options will be available under the field's settings.options property. Each option will have attributes for value and label:

{% for option in myFieldOptions.settings.options %}
    {{ option.label }} {{ option.value }}
{% endfor %}